func_code_string: #include <bits/stdc++.h>   using namespace std;   const int mod = int(1e6 + 3);   vector<vector<int> > v;   char second[600000];   int n, m;   int main() {     scanf( %d%d n , &n, &m);     v.resize(n);     for (int i = 0; i < n; ++i) {       gets(second);       v[i].resize(m);       for (int j = 0; j < m; ++j) {         v[i][j] = (second[j] ==  . ) ? -1 : second[j] -  0 ;       }     }     int res = 1;     for (int i = 0; i < n; ++i) {       int dir = -1;       for (int j = 0; j < m; ++j)         if (v[i][j] != -1) {           dir = (v[i][j] > 2) ? 1 : 0;           if (j & 1) dir = 1 - dir;           break;         }       if (dir != -1) {         for (int j = 0; j < m; ++j)           if (v[i][j] != -1) {             int d2 = (v[i][j] > 2) ? 1 : 0;             if (j & 1) d2 = 1 - d2;             if (dir != d2) res = 0;           }       } else if (dir == -1)         res = (res * 2) % mod;     }     for (int j = 0; j < m; ++j) {       int dir = -1;       for (int i = 0; i < n; ++i)         if (v[i][j] != -1) {           dir = (v[i][j] > 1 && v[i][j] < 4) ? 1 : 0;           if (i & 1) dir = 1 - dir;           break;         }       if (dir != -1) {         for (int i = 0; i < n; ++i)           if (v[i][j] != -1) {             int d2 = (v[i][j] > 1 && v[i][j] < 4) ? 1 : 0;             if (i & 1) d2 = 1 - d2;             if (dir != d2) res = 0;           }       } else if (dir == -1)         res = (res * 2) % mod;     }     printf( %d n , res);     return 0;   }   