#include<stdio.h>

void main () {
	int a,b,c,x;
	scanf("%d%d%d",&a,&b,&c);
	
	x=0;
	
	if(a>=90&&a<=100){
		x=x+1;
	}
	if(b>=90&&b<=100){
		x=x+1;
	}
	if(c>=90&&c<=100){
		x=x+1;
	}
	printf("%d",x);
}
/**************************************************************
	Problem: 1678
	User: admin
	Language: C
	Result: Accepted
	Time:11 ms
	Memory:1144 kb
****************************************************************/