{
    "Contributors": [
        "Kirby Kuznia"
    ],
    "Source": [
        "synthetic"
    ],
    "URL": [
        NaN
    ],
    "Categories": [
        "Program Execution"
    ],
    "Reasoning": [],
    "Definition": [
        "In this task you will be given a string and you should find the longest substring that is a palindrome. A palindrome is a string that is the same backwards as it is forwards. If the shortest possible palindrome is length 1 you should return the first character."
    ],
    "Input_language": [
        "English"
    ],
    "Output_language": [
        "English"
    ],
    "Instruction_language": [
        "English"
    ],
    "Domains": [
        "Code",
        "Mathematics"
    ],
    "Positive Examples": [
        {
            "input": "gocogccocco",
            "output": "gocog",
            "explanation": "The substring 'gocog' is the longest possible substring that is also a palindrome. So this is a good example."
        },
        {
            "input": "fedfe",
            "output": "f",
            "explanation": "The longest palindrome is length 1 so the first character is returned. This is a good example."
        },
        {
            "input": "ccpmpppppmpcc",
            "output": "ccpmpppppmpcc",
            "explanation": "The entire string 'ccpmpppppmpcc' is a palindrome, so the entire string is returned. This is a good example."
        }
    ],
    "Negative Examples": [
        {
            "input": "xxpppppxgxgp",
            "output": "malayalam",
            "explanation": "The output is a palindrome but it is not a substring of the input. So this is a bad example."
        },
        {
            "input": "wxwwxmmxwwm",
            "output": "8",
            "explanation": "The output is the length of the longest substring that is a palindrome, but not the substring itself. So this is a bad example."
        },
        {
            "input": "rbppr",
            "output": "rppr",
            "explanation": "The output is not a proper substring of the input. The first 'r' in does not appear directly before the first 'p' in the input string. So this is a bad example."
        }
    ],
    "Instances": [
        {
            "id": "task850-520a18c3055c42beb5127a4724212fa9",
            "input": "totjjotjojtojto",
            "output": [
                "jotjojtoj"
            ]
        },
        {
            "id": "task850-b46cc8b06796489c8df2265437d14f2c",
            "input": "azaaazzzzzz",
            "output": [
                "zzzzzz"
            ]
        },
        {
            "id": "task850-bc961f4ee30b452c8808d21f4e5d5afc",
            "input": "uuykyuyukk",
            "output": [
                "uykyu"
            ]
        },
        {
            "id": "task850-0d112a35528449108360c06f894d317d",
            "input": "ppprhprppp",
            "output": [
                "ppp"
            ]
        },
        {
            "id": "task850-40d4493f65b94504a156efd9f3a3a671",
            "input": "ssysysyssjyjsyj",
            "output": [
                "ssysysyss"
            ]
        },
        {
            "id": "task850-c47d69f801db4875953e6313d1c9c8cd",
            "input": "wqqqwwqmqq",
            "output": [
                "wqqqw"
            ]
        },
        {
            "id": "task850-bb8a9b27146848eab94410c5d8060f1e",
            "input": "fwwwaaaaafa",
            "output": [
                "aaaaa"
            ]
        },
        {
            "id": "task850-35039d35022d4752808624bde26b3f33",
            "input": "ffyyftyfyft",
            "output": [
                "fyyf"
            ]
        },
        {
            "id": "task850-9071dd3e0fa0436a9834b02e1c14b780",
            "input": "zzzzzzeezezee",
            "output": [
                "eezezee"
            ]
        },
        {
            "id": "task850-d2dbbebae54843d7aedb54f9a5e34515",
            "input": "aybabybbbyba",
            "output": [
                "abybbbyba"
            ]
        },
        {
            "id": "task850-ec732d9a1c834dd59c2cf0412bdeeda8",
            "input": "jjekjjkeejekee",
            "output": [
                "ekjjke"
            ]
        },
        {
            "id": "task850-e92e46719bc641f39c53738960ce50db",
            "input": "mmmtmtmtmm",
            "output": [
                "mmtmtmtmm"
            ]
        },
        {
            "id": "task850-9ed528c442524843abbe30c369ec6086",
            "input": "ijiwjijjwjw",
            "output": [
                "iji"
            ]
        },
        {
            "id": "task850-7e1795ff584c4b70862e1204519ef5bf",
            "input": "llzlaazzzzalzza",
            "output": [
                "azzzza"
            ]
        },
        {
            "id": "task850-df1c18f85b0c4c3ebf6dcfdf635aff64",
            "input": "ctqccctqqqctct",
            "output": [
                "ccc"
            ]
        },
        {
            "id": "task850-417e534c8d564569a8434bc25ea7f49b",
            "input": "ddddddvddddvdv",
            "output": [
                "ddddvdddd"
            ]
        },
        {
            "id": "task850-90a4fbb3fd484109b23fa3f331f5e21b",
            "input": "ppzzznnnpnnzp",
            "output": [
                "nnpnn"
            ]
        },
        {
            "id": "task850-e27097567b7341c6974c4ad104ea2523",
            "input": "tttsstststtstgs",
            "output": [
                "tsttst"
            ]
        },
        {
            "id": "task850-ed6f923ce609414d82d0c7a71c20f1b7",
            "input": "gwwggggggwwg",
            "output": [
                "gwwggggggwwg"
            ]
        },
        {
            "id": "task850-73cf001d22814a399752df898846ff8c",
            "input": "qkqqsskqskkqk",
            "output": [
                "qkq"
            ]
        },
        {
            "id": "task850-5e9304540aad4cc4bcf5850dfe36d05b",
            "input": "fflwfwflflwww",
            "output": [
                "wfw"
            ]
        },
        {
            "id": "task850-bc58ef0000ac4694a53cb02a12144435",
            "input": "kssssstkkskktsk",
            "output": [
                "stkkskkts"
            ]
        },
        {
            "id": "task850-ee0c53d5782a43ceb592eb3c074c26d3",
            "input": "ddzdztzdtdtzd",
            "output": [
                "dztzd"
            ]
        },
        {
            "id": "task850-b133736eb57f4b7e90be7625be62f375",
            "input": "usggguguggugggg",
            "output": [
                "ggugugg"
            ]
        },
        {
            "id": "task850-a2e60ed6a46c4201bfc965f045cd049c",
            "input": "nwwwnwnrwrnnnr",
            "output": [
                "nwwwn"
            ]
        },
        {
            "id": "task850-5702ed00606341f48c0b27053f08fca4",
            "input": "qqcicqiiiiccq",
            "output": [
                "qcicq"
            ]
        },
        {
            "id": "task850-f76c6bfb381c4481b14b449382a2e79c",
            "input": "mxxmxxtmxmmxmtx",
            "output": [
                "xtmxmmxmtx"
            ]
        },
        {
            "id": "task850-159d6d6915974a09b3ac88fe7a423135",
            "input": "rtiirtrtrtri",
            "output": [
                "irtrtrtri"
            ]
        },
        {
            "id": "task850-b56150fd144b4d1fb00c30f46cc49a6d",
            "input": "llhhlhlllhl",
            "output": [
                "lhlllhl"
            ]
        },
        {
            "id": "task850-62007cb9161946bba4b39aafdcbeb3aa",
            "input": "sshsvvsvhvh",
            "output": [
                "svvs"
            ]
        },
        {
            "id": "task850-2e8ed3b9e09e4f6e85fc093734cd5c6c",
            "input": "pppzaapappp",
            "output": [
                "ppp"
            ]
        },
        {
            "id": "task850-dce90ea2baa743f590eb00be4f36b734",
            "input": "nnnppnnnnppnnn",
            "output": [
                "nnnppnnnnppnnn"
            ]
        },
        {
            "id": "task850-6bfe716796bf4000a66dd379003204e6",
            "input": "xxaxagxxaax",
            "output": [
                "xaax"
            ]
        },
        {
            "id": "task850-3b5751cb62604a92bdaf5d04d63b5c14",
            "input": "xxaavxvxavxxx",
            "output": [
                "vxv"
            ]
        },
        {
            "id": "task850-fda10f8ebf384a9bb0db8073c3fd306a",
            "input": "rlrlrrmrrlmmmlm",
            "output": [
                "lrrmrrl"
            ]
        },
        {
            "id": "task850-16c99bbd7ec44589be6a6272005c9004",
            "input": "seelllllss",
            "output": [
                "lllll"
            ]
        },
        {
            "id": "task850-15de221e5cc844ac8d35714232a4ed11",
            "input": "nrnniirnnin",
            "output": [
                "nrn"
            ]
        },
        {
            "id": "task850-cb538e8c05884fbead5e329924fa577e",
            "input": "bwwkbwwbwkwkbkb",
            "output": [
                "bwwb"
            ]
        },
        {
            "id": "task850-e4a90607b55f4d2e99b86f6d2fac3d75",
            "input": "ggvviigvvgvgigi",
            "output": [
                "gvvg"
            ]
        },
        {
            "id": "task850-78912f5b386b452e8a177f8a8dac951f",
            "input": "ztttztgzggztt",
            "output": [
                "ztttz"
            ]
        },
        {
            "id": "task850-eac3716c3efb46daaedac90e306cb45b",
            "input": "tttqtqhtqhqtqt",
            "output": [
                "tqhqt"
            ]
        },
        {
            "id": "task850-31e3086c7938432494c3d457dbd56370",
            "input": "qrqrqrrrqrrrqr",
            "output": [
                "rqrrrqrrrqr"
            ]
        },
        {
            "id": "task850-87886bf97967402cad28feb29143b138",
            "input": "ovozzooozozvvzo",
            "output": [
                "ozvvzo"
            ]
        },
        {
            "id": "task850-a977c5d4c6824e0aafb25378423683ef",
            "input": "dfdfdfdddd",
            "output": [
                "dfdfdfd"
            ]
        },
        {
            "id": "task850-1532c692f64d4096a7da4ad26bdbd8f3",
            "input": "ccxcxxxyccc",
            "output": [
                "cxc"
            ]
        },
        {
            "id": "task850-37fca24e1e6f4ae682368037b31ee861",
            "input": "ddeededddd",
            "output": [
                "deed"
            ]
        },
        {
            "id": "task850-7bf3cce31f9e408c8d80e445f29ad976",
            "input": "ngononnong",
            "output": [
                "nonnon"
            ]
        },
        {
            "id": "task850-47a72c3f98114f46b498c69138a02b46",
            "input": "xxyywwxxyxxy",
            "output": [
                "xxyxx"
            ]
        },
        {
            "id": "task850-0c8ddde7c66b49d486335d4a17da2319",
            "input": "aayayyyyta",
            "output": [
                "yyyy"
            ]
        },
        {
            "id": "task850-e429cf2369a74f7ba53da1f7d049050c",
            "input": "gcgjcgjjcg",
            "output": [
                "gcg"
            ]
        },
        {
            "id": "task850-9dff103b33874969807df1d58ff57d59",
            "input": "kfhkkffkhkk",
            "output": [
                "kffk"
            ]
        },
        {
            "id": "task850-7f01485f77524e1482b9fec5e33cfdaf",
            "input": "qnqbbbbbqqb",
            "output": [
                "qbbbbbq"
            ]
        },
        {
            "id": "task850-54ebca374c5f4b41a4848cea2a7c5164",
            "input": "mamzmaamzammama",
            "output": [
                "zmaamz"
            ]
        },
        {
            "id": "task850-132d1cc01f4c46d2b778a0f619323031",
            "input": "llkldkklldllll",
            "output": [
                "lldll"
            ]
        },
        {
            "id": "task850-51010355c0594755a3e77112877f848d",
            "input": "jffjjfjjifjfjfj",
            "output": [
                "jjfjj"
            ]
        },
        {
            "id": "task850-62db86965ea24b3da9fff81258afcae9",
            "input": "tzzzzttzttztzz",
            "output": [
                "zttzttz"
            ]
        },
        {
            "id": "task850-c049e3134df64f92bbe4e45a7c7464f1",
            "input": "azvaavaazv",
            "output": [
                "aavaa"
            ]
        },
        {
            "id": "task850-bcb8dc5d673f4a2cb3a33d346e2d321d",
            "input": "soshohhhohhoh",
            "output": [
                "hohhhoh"
            ]
        },
        {
            "id": "task850-cab068db06b2459ba7896149d5bde27e",
            "input": "nnngkkgnnnk",
            "output": [
                "nnngkkgnnn"
            ]
        },
        {
            "id": "task850-1416a7469ae341748986a64e7b0e9fe5",
            "input": "bdbdbdbgdbbdbdb",
            "output": [
                "bdbdbdb"
            ]
        },
        {
            "id": "task850-b0b4c381b5bb49fdbdc7fd8fb7855791",
            "input": "mmiiiwmmimww",
            "output": [
                "iii"
            ]
        },
        {
            "id": "task850-d4276c3840ab4cf994a55f1914534688",
            "input": "nnkknmmmkk",
            "output": [
                "nkkn"
            ]
        },
        {
            "id": "task850-8df0ffc7e19747de98de834edee73244",
            "input": "uutuputppup",
            "output": [
                "tuput"
            ]
        },
        {
            "id": "task850-7d211157243347a295020513f23b9d56",
            "input": "eieimmeeieemmem",
            "output": [
                "mmeeieemm"
            ]
        },
        {
            "id": "task850-371b1fc995944330bee8d92b34c39c1d",
            "input": "tttddtdtdeeed",
            "output": [
                "dtdtd"
            ]
        },
        {
            "id": "task850-cfb67a8ac181455c82dbcfb459aa79d4",
            "input": "yoymooymmomo",
            "output": [
                "yoy"
            ]
        },
        {
            "id": "task850-2b967bc3e1054927a2819224622d93de",
            "input": "swwissiisiwi",
            "output": [
                "issi"
            ]
        },
        {
            "id": "task850-6e36c6b6f54d481da220e0e8cf96ae82",
            "input": "uuuubutbbtutuut",
            "output": [
                "utbbtu"
            ]
        },
        {
            "id": "task850-0cf4452b364542cf99803944b5de0cea",
            "input": "tcnctcnnnttnncn",
            "output": [
                "nnttnn"
            ]
        },
        {
            "id": "task850-19882ee8b30745d5a7c9d79ce61cf235",
            "input": "mvvvvmvvvmvmmmm",
            "output": [
                "vvvmvvv"
            ]
        },
        {
            "id": "task850-4655139bf70a428c98d513464767e2d0",
            "input": "ezzzzezjejzee",
            "output": [
                "ezjejze"
            ]
        },
        {
            "id": "task850-4ef5959795e3461294157b4fdedbc14a",
            "input": "wmeeeweeewe",
            "output": [
                "eeeweee"
            ]
        },
        {
            "id": "task850-8ba437d2d4f74824b30b1028c9035e92",
            "input": "wwewweewyey",
            "output": [
                "wweww"
            ]
        },
        {
            "id": "task850-3baecad60ad04795a83606c95eb6c9df",
            "input": "dddpppffddd",
            "output": [
                "ddd"
            ]
        },
        {
            "id": "task850-75f0f5e2987e4255b2099e83568b8e09",
            "input": "aammmmaxxxxam",
            "output": [
                "maxxxxam"
            ]
        },
        {
            "id": "task850-9d047e103b1c449cb9a79d700224ed9c",
            "input": "rmrurmmruurmrur",
            "output": [
                "urmmru"
            ]
        },
        {
            "id": "task850-fa4fa51849a44f33a753a9b3791b3742",
            "input": "aaafaajaffjjj",
            "output": [
                "aafaa"
            ]
        },
        {
            "id": "task850-938a062a024e4b3ea3e397ec63da04ee",
            "input": "ttmtmtmfmmff",
            "output": [
                "tmtmt"
            ]
        },
        {
            "id": "task850-da6a1277e5ca4f06b0e46b4b4a698d3c",
            "input": "bbbbrblblll",
            "output": [
                "bbbb"
            ]
        },
        {
            "id": "task850-bfeded7b4f0a42e5b4b6e7dd87bc6f51",
            "input": "ttwetteeet",
            "output": [
                "teeet"
            ]
        },
        {
            "id": "task850-72cae557190b437f9ea2ea6212b7580a",
            "input": "spwppwswpspp",
            "output": [
                "pwswp"
            ]
        },
        {
            "id": "task850-007c8e188d384def80ad6a087bd4b542",
            "input": "thhhhtrtrtr",
            "output": [
                "thhhht"
            ]
        },
        {
            "id": "task850-8f5990be0c9248f5af6675eb38d373f9",
            "input": "zzzbzddbdzdz",
            "output": [
                "zzz"
            ]
        },
        {
            "id": "task850-ca8f3ba6a24c4a9c9dfab74b6250a9e3",
            "input": "xxyyxyyyxlll",
            "output": [
                "yyxyy"
            ]
        },
        {
            "id": "task850-004d72c5795b42ec805342bbebecf157",
            "input": "aglgllllaagalgl",
            "output": [
                "llll"
            ]
        },
        {
            "id": "task850-aa16c188ec6b44eca33316b8053b049e",
            "input": "gogogooeeeoegee",
            "output": [
                "gogog"
            ]
        },
        {
            "id": "task850-2342f71c11284f00b6f9259ceacfd694",
            "input": "tkktsskskk",
            "output": [
                "tkkt"
            ]
        },
        {
            "id": "task850-de0b71ef446c4316b66454ae49bf9887",
            "input": "bbbbppbbbpv",
            "output": [
                "bbbppbbb"
            ]
        },
        {
            "id": "task850-64287cd53107477493fe4fcff789208c",
            "input": "nfnyfnyyffn",
            "output": [
                "nfn"
            ]
        },
        {
            "id": "task850-fd64d4b7863c40d09c69ebd84ed01cd9",
            "input": "vnvnvnvvna",
            "output": [
                "vnvnvnv"
            ]
        },
        {
            "id": "task850-c4e6e08b5c634554babebc3079108e8c",
            "input": "xagagxxxaax",
            "output": [
                "xaax"
            ]
        },
        {
            "id": "task850-06e4320b1aee4255904adfdeb34679f9",
            "input": "shsoosooooh",
            "output": [
                "oosoo"
            ]
        },
        {
            "id": "task850-d024775b45574fefb8b7ed19a07c723b",
            "input": "eezzszsszes",
            "output": [
                "zssz"
            ]
        },
        {
            "id": "task850-e0ddd99be0404b208bb3b7038150356e",
            "input": "zssjssjzjj",
            "output": [
                "ssjss"
            ]
        },
        {
            "id": "task850-a66c9272be6e4b7e8ca19e5aa5d6a015",
            "input": "jjvjjbvbvjv",
            "output": [
                "jjvjj"
            ]
        },
        {
            "id": "task850-190973d77e02430492aa59b2a91060bc",
            "input": "qquqqquqmmu",
            "output": [
                "quqqquq"
            ]
        },
        {
            "id": "task850-bbbcea5e8e3d4b949068f41cc9d96cf9",
            "input": "gbbogogobgbgb",
            "output": [
                "bogogob"
            ]
        },
        {
            "id": "task850-04d09c8d33ff42ea8929ffd6c18d2f7c",
            "input": "sfbbfsssfffsbb",
            "output": [
                "sfbbfs"
            ]
        },
        {
            "id": "task850-4895c5978a094a4d86a0f5a41cf463bf",
            "input": "sffyfssfsyyfsff",
            "output": [
                "fssf"
            ]
        },
        {
            "id": "task850-583665e7c8444383bb7f3fea49b018fe",
            "input": "gspgpssssp",
            "output": [
                "pssssp"
            ]
        },
        {
            "id": "task850-c5aeaf6bfb54405aa607008ba9ffb7a1",
            "input": "oiiikkioio",
            "output": [
                "ikki"
            ]
        },
        {
            "id": "task850-f9f04572c32d4246b67b82624884d83d",
            "input": "asoossooaaooo",
            "output": [
                "oossoo"
            ]
        },
        {
            "id": "task850-85527e45f8444c338f3f2c74e384a944",
            "input": "tvvxvtvtxxxvvvt",
            "output": [
                "vxv"
            ]
        },
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