n = 45; p = array2d(1..45, 0..45, [ 0, -1000, -3, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -3, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -3, -1000, 5, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -4, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, 5, -1000, -4, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 7, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -4, -1000, 3, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 4, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, 3, -1000, 5, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -4, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, 5, -1000, -4, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -4, -1000, 3, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, 3, -1000, 4, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -7, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 4, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -6, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -3, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 9, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -4, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 9, -1000, -3, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 6, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, 7, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -3, -1000, -1, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 5, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, 4, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1, -1000, -4, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 3, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -4, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -4, -1000, 5, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -6, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 5, -1000, 3, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 3, -1000, -1, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 2, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -7, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1, -1000, -2, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -6, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -2, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -4, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 6, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -7, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 6, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 6, -1000, 9, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -6, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 5, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 9, -1000, 4, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 4, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 3, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 4, -1000, 8, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 1, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -6, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 8, -1000, -1, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -4, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1, -1000, 2, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 2, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 2, -1000, 3, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -5, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 3, -1000, 1, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 5, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -4, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 1, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -6, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -7, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 3, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 2, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -6, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 3, -1000, 9, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -2, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 4, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 9, -1000, 4, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -3, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 1, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 4, -1000, 8, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -4, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -4, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 8, -1000, 9, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -7, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1, -1000, 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