#include using namespace std; #define int long long #define rep(i,l,r) for(int i=(int)(l);i<(int)(r);i++) #define all(x) (x).begin(),(x).end() #define pb push_back templatebool chmax(T &a,T b){if(abool chmin(T &a,T b){if(a>b){a=b;return 1;}return 0;} typedef pair pii; typedef vector vi; typedef vector vvi; const int inf = 1LL<<60; const int mod = 1e9 + 7; const double eps = 1e-9; /*{ }*/ signed main() { int n, m; cin >> n >> m; vvi a(m, vi(n)); rep(i, 0, m) rep(j, 0, n) cin >> a[i][j]; vi b(n); bool ans = false; rep(i, 0, m){ rep(j, 0, n) b[j] += a[i][j]; int r = 0, sum = 0; rep(l, 0, n){ while(r < n and sum < 777){ sum += b[r]; r++; } if(sum == 777) ans = true; if(l == r) r++; else sum -= b[l]; } } cout << (ans ? "YES" : "NO") << endl; return 0; }