#include<bits/stdc++.h>
using namespace std;
int main(){
	int a[1100][10]={0},n,m,k,i,j,h=0;
	cin>>n>>m;
	for(i=0;i<n;i++){
		for(j=0;j<m;j++){
			cin>>a[i][j];
		}
	}
	for(i=0;i<n;i++){
		h=0;
		for(j=0;j<m;j++){
			h=h+a[i][j];
		}
		if(h>=721){
			k++;
		}
	}
	cout<<k;
}
/**************************************************************
	Problem: 2026
	User: lvrenxiang
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2072 kb
****************************************************************/