func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     std::ios_base::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);     long long int testcases;     cin >> testcases;     while (testcases--) {       long long int n, m;       cin >> n >> m;       char a[n][m];       for (long long int(i) = 0; (i) < (n); (i)++) {         for (long long int(j) = 0; (j) < (m); (j)++) cin >> a[i][j];       }       long long int cnt = 0;       for (long long int j = 0; j < m - 1; j++) {         if (a[n - 1][j] ==  D ) cnt++;       }       for (long long int(i) = 0; (i) < (n - 1); (i)++) {         if (a[i][m - 1] ==  R ) cnt++;       }       cout << cnt <<   n ;     }     return 0;   }   