func_code_string: #include <bits/stdc++.h>   using namespace std;   int n;   string a;   void input() {     cin >> n;     cin >> a;   }   void solve() {     int ans = 0;     for (int i = 1; i < n; ++i) {       ans += (a[i] == a[i - 1]);     }     cout << (ans + 1) / 2 <<   n ;   }   int main() {     ios_base ::sync_with_stdio(false);     cin.tie(NULL);     int t;     cin >> t;     while (t--) {       input();       solve();     }     return 0;   }   