import re
from typing import Any, Iterator

from ..base import BaseSolver
from ..tools.math import pow_mod


class Solver(BaseSolver):
    def solve(self, input: str) -> Iterator[Any]:
        m = re.search(r"row\s*([0-9]+)\s*,\s*column\s*([0-9]+)", input)
        assert m is not None

        row, col = int(m.group(1)), int(m.group(2))
        n = (row * (row - 1)) // 2 + col * (col + 1) // 2 + (row - 1) * (col - 1)

        yield (20151125 * pow_mod(252533, n - 1, 33554393)) % 33554393