#include <iostream>
using namespace std;
int n,m,sm,pv,i,j,t,nw[1000];
main(){
	cin>>n>>m;
	for(i=0;m>i;i++){
		sm=0;pv=0;
		for(j=0;n>j;j++){
			cin>>t;
			sm+=nw[j]+=t;
			while(777<sm)sm-=nw[pv],pv++;
			if(777==sm){
				cout<<"YES"<<endl;
				return 0;
			}
		}
	}
	cout<<"NO"<<endl;
}