#include <iostream> #include <string> using namespace std ; int main() { int t; cin >>t; while(t--) { string s ; cin >> s ; int len = s.size()-1; int count = 0 ; int begin = 0 ; while(begin < len) { if(s[begin] == s[begin+1]) { ++count ; ++begin ; } else ++begin ; } cout << count << endl ; } }