#include <bits/stdc++.h>
using namespace std;

void no_1005(void) {
    string s, t;
    cin >> s >> t;
    int t_size = (int)t.size();
    int tcnt = 0;
    int ptr = 0;
    while (true) {
        string s_tmp = s.substr(ptr, t_size);
        if (s_tmp == t) {
            tcnt++;
            ptr += t_size;
        } else
            ptr++;
        if (ptr >= (int)s.size() - t_size + 1) break;
    }
    if (t.size() == 1) tcnt = -1;
    cout << tcnt << endl;
}

int main(void) {
    no_1005();
    return 0;
}