#include <bits/stdc++.h>
//#include<atcoder/all>
//using namespace atcoder;
using namespace std;
using ll = long long;
#define all(A) A.begin(),A.end()
using vll = vector<ll>;
#define rep(i, n) for (long long i = 0; i < (long long)(n); i++)

int main() {
	string S,T;
	cin>>S>>T;
	ll an=0;
	ll N=S.size();
	ll M=T.size();
	if(M==1){
		rep(i,N){
			if(S[i]==T[0]){
				cout<<-1<<endl;
				return 0;
			}
		}
		cout<<0<<endl;
		return 0;
	}
	rep(i,N-M+1){
		bool C=true;
		for(ll j=i;j<i+M;j++){
			if(S[j]!=T[j-i]){
				C=false;
			}
		}
		if(C){
			an++;
			i+=M-1;
		}
	}
	cout<<an<<endl;
}