func_code_string: #include <bits/stdc++.h>   using namespace std;   string s;   int n, ans, x = 201, y = 201, u[405][405];   int main() {     scanf( %d , &n);     cin >> s;     for (int i = 0; i < n; ++i) {       ans += u[x][y];       ++u[x][y];       if (s[i] ==  U ) ++x;       if (s[i] ==  D ) --x;       if (s[i] ==  R ) ++y;       if (s[i] ==  L ) --y;     }     ans += u[x][y];     cout << ans;     return 0;   }   