#include<bits/stdc++.h>
using namespace std;
int main(){
	int a,b,c,i=0;
	cin>>a>>b>>c;
	if(a>=90) i++;
	if(b>=90) i++;
	if(c>=90) i++;
	cout<<i;
}
/**************************************************************
	Problem: 1678
	User: linmiaoling
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/