#include <iostream>
#include <string>

using namespace std;

#define rep(i, a, n) for(int i = a; i < (n); ++i)

int main(){
    string S, T;
    cin >> S >> T;
    int LengthT = T.length();
    int LengthS = S.length();

    if (LengthS < LengthT || LengthT == 1)
    {
        cout << -1 << endl;
        return 0;
    }
    
    int count = 0;
    rep(i, 0, LengthS - LengthT + 1)
    {
        string Temp = "";
        rep(j, i, i+LengthT)
        {
            Temp += S[j];
        }
        if (Temp == T)
        {
            ++count;
          	i += LengthT - 1;
        }
    }
    cout << count << endl;
}