#include <iostream> #include <vector> #include <string> #include <algorithm> #include <utility> #include <stack> #include <functional> #include <queue> #include <cmath> #include <set> #include <map> #define rep(i,j,k) for(int i=(int)j;i<(int)k;i++) #define Sort(x) sort((x).begin(),(x).end()) #define all(x) (x).begin(),(x).end() #define fi first #define se second #define vi vector<int> #define INF (int)1e933 #define INFL 1e18 #define MOD 1e9+7 #define pb push_back #define MP make_pair typedef long long int ll; typedef std::pair<int,int> pii; int dx[4]={0,1,0,-1},dy[4]={1,0,-1,0}; using namespace std; int main() { int N,M; cin>>N>>M; vector<int> train(N,0); rep(i,0,M){ rep(j,0,N){ int x;cin>>x; train[j]+=x; } int left=-1,right=0,sum=0; for(int right=0;right<N;right++){ sum+=train[right]; while(sum>777&&left<right){ left++; sum-=train[left]; } if(sum==777){ cout<<"YES"<<endl; return 0; } } } cout<<"NO"<<endl; return 0; }