25/solution.py


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def part1(row, col):
    row -= 1
    col -= 1

    n = row + col
    n = n * (n + 1) // 2 + col

    code = 20151125
    for i in range(n):
        code = code * 252533 % 33554393
    return code

if __name__ == '__main__':
    row = 2978
    col = 3083

    print(part1(1, 1))
    print(part1(3, 4))
    print(part1(row, col))