#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: panjinyan
	Language: C++
	Result: Accepted
	Time:12 ms
	Memory:2072 kb
****************************************************************/