{
    "reason": "Irregular format",
    "part1length": 2,
    "inputs": {
        "selector": "code",
        "indexes": [18],
        "transforms": [{
            "functions": [
                { "slice": ["1", "2"] }
            ], "appliesTo": [0]
        }]
    },
    "answers": {
        "selector": "code",
        "indexesOrLiterals": [20]
    }
}