#include <iostream>
#include <string>
using namespace std;

int main() {
  cin.tie(0);
  ios::sync_with_stdio(false);

  string S, T; cin >> S >> T;
  if (T.size() == 1) {
    cout << (S.find(T) == string::npos ? 0 : -1) << "\n";
    return 0;
  }

  int ans = 0;
  string s = S;
  while (!s.empty()) {
    int pos = s.find(T);
    if (pos == string::npos) break;
    s = s.substr(pos + T.size() - 1);
    ans++;
  }
  cout << ans << "\n";
}