func_code_string: #include <bits/stdc++.h>   using namespace std;   int z[100001];   int main() {     string s;     int T, a, b;     cin >> s;     for (a = 1; a < s.size(); a++) {       z[a] = z[a - 1] + (s[a] == s[a - 1]);     }     for (cin >> T; T--; cout << z[b - 1] - z[a - 1] << endl) cin >> a >> b;     return 0;   }   