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


int main()
{
	string S, T;
	cin >> S >> T;

	int ans = 0;
	string::size_type pos = 0;
	if( T.size() == 1 ) {
		pos = S.find( T, pos );
		if( pos != string::npos ) ans = -1;
	}
	else {
		while( true  ) {
			pos = S.find( T, pos );
			if( pos == string::npos ) break;
			S.insert( pos + T.size() - 1, string( "." ) );
			ans++;
		}
	}

	cout << ans << endl;
}