func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N = 5e5 + 10, B = 1e6 + 3;   int n, m, p1[N][2], p2[N][2], x, y;   long long ans = 1;   int main() {     scanf( %d%d n , &n, &m);     char a[n + 3][m + 3];     for (int i = 0; i < n; ++i) gets(a[i]);     for (int i = 0; i < n; ++i) {       for (int j = 0; j < m; ++j)         if (a[i][j] !=  . ) {           x = (a[i][j] <  2 ) || (a[i][j] >  3 );           y = i % 2;           p1[j][x ^ y] = 1;           x = a[i][j] <  3 ;           y = j % 2;           p2[i][x ^ y] = 1;         }     }     for (int i = 0; i < m; ++i) ans = (ans * (2 - p1[i][0] - p1[i][1])) % B;     for (int i = 0; i < n; ++i) ans = (ans * (2 - p2[i][0] - p2[i][1])) % B;     printf( %lld n , ans);     return 0;   }   