func_code_string: #include <bits/stdc++.h>   using namespace std;   using ll = long long;   const ll mod = 1e9 + 7;   int main() {     ios_base::sync_with_stdio(false);     int n, m;     cin >> n;     char prev =  a ;     int dur = 0;     vector<int> durs;     for (int i = 0; i < n; ++i) {       char c;       cin >> c;       if (c ==  W ) {         if (dur != 0) durs.push_back(dur);         dur = 0;       } else {         ++dur;       }     }     if (dur != 0) durs.push_back(dur);     cout << durs.size() <<   n ;     for (int i = 0; i < durs.size(); ++i) {       cout << durs[i] <<    ;     }     return 0;   }   