#include <iostream>
#include <string>
using namespace std;

int main() {
string str, substr;
// 读取主串
getline(cin, str);
// 读取子串
getline(cin, substr);

int count = 0;
size_t pos = 0;
while ((pos = str.find(substr, pos)) != string::npos) {
count++;
pos += substr.length();
}
if (count == 0) {
cout << -1 << endl;
} else {
cout << count << endl;
}
return 0;
}