#define _LIBCPP_DEBUG 0
#include<bits/stdc++.h>
using namespace std;
typedef long long int ll;
ll MOD = 1e9 + 7;


int main(void) {

    string S,T; cin>>S>>T;

    if(T.size()==1){
        cout<<-1<<endl;
        return 0;
    }

    int S_size = S.size();
    int T_size = T.size();
    int cnt = 0;
    for (int i = 0; i < S_size-T_size+1; ++i) {
        if(S.substr(i,T_size)==T) {
            cnt++;
            i+=T_size-2;
        }
    }

    cout<<cnt<<endl;

    return 0;
}