#include<iostream>
#include<string>
#include<iomanip>
#include<cmath>
#include<vector>
#include<algorithm>
#include<utility>

using namespace std;

#define int long long
#define endl "\n"

constexpr long long INF = (long long)1e18;
constexpr long long MOD = 1'000'000'007; 

struct fast_io {
	fast_io(){
		std::cin.tie(nullptr);
		std::ios::sync_with_stdio(false);
	};
} fio;

constexpr int MAX = 1100;

string S;
string T;

signed main(){
	cout<<fixed<<setprecision(10);
	
	int con = 0;
	
	cin>>S>>T;
	
	if(T.size() == 1) {
		if(count(S.begin(), S.end(), T[0]) == 0) cout<<0<<endl;
		else cout<<-1<<endl;
		return 0;
	}
	
	for(int i = 0; i < S.size(); i++){
		bool flag = true;
		
		for(int j = 0; j < T.size(); j++){
			if(i+j >= S.size()) flag = false;
			if(S[i+j] != T[j]) {
				flag = false;
			}
			
			if(!flag) break;
		}
		
		if(flag) {
			i = i + T.size() - 2;
			con++;
		}
	}
	
	cout<<con<<endl;
	
	
	return 0;
}