func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N = 100009;   int main() {     string s;     cin >> s;     int l = s.size();     for (int i = 0; i < l; i++) s += s[i];     int ans = 1;     for (int i = 0; i < l;) {       int j = i;       for (; j < l + i - 1; j++) {         if (s[j] == s[j + 1])           break;         else           ans = max(ans, j - i + 2);       }       i = j + 1;     }     cout << ans << endl;   }   