func_code_string: #include <bits/stdc++.h>   using namespace std;   int pos[200003];   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     cout.tie(NULL);     int n, x, l = 0, r = 0;     char c;     cin >> n;     cin >> c >> x;     n--;     while (n--) {       cin >> c >> x;       if (c ==  L ) {         pos[x] = --l;       } else if (c ==  R ) {         pos[x] = ++r;       } else {         cout << min(r - pos[x], pos[x] - l) <<   n ;       }     }     return 0;   }   