#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: wengsihan
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2072 kb
****************************************************************/