Untitled

#include <iostream>
using namespace std;
int main() {
	int a, b, c;
	cin >> a >> b;
	c = float(b) / float(a) * 100;
	if (c == 0) cout << 0;
	else if (c >= 1 && c <= 10) cout << 1;
	else if (c >= 11 && c <= 50) cout << 2;
	else if (c >= 51 && c <= 70) cout << 3;
	else if (c >= 71 && c <= 84) cout << 4;
	else if (c >= 85 && c <= 100) cout << 5;

}