type IncMap = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21];
type DecMap = [-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20];
type AddTable = [
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];
type SubTable = [
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    ],
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    ],
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        3
    ],
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        0,
        1,
        2
    ],
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        1
    ],
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        -2,
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        0
    ]
];
export type Inc<N extends number> = IncMap[N];
export type Dec<N extends number> = DecMap[N];
export type Add<N extends number, M extends number> = AddTable[N][M];
export type Sub<N extends number, M extends number> = SubTable[M][N];
export {};