const no = "NO";
const yes = "YES";

function main() {
    let N, M;
    const input = require('fs').readFileSync('/dev/stdin', 'utf8').trim().split('\n');
    [N, M] = input[0].split(' ').map(Number);
    
    let A = Array.from({ length: M }, () => Array(N).fill(0));

    // Input
    for (let i = 0; i < M; i++) {
        A[i] = input[i + 1].split(' ').map(Number);
    }

    // Prefix sum rows
    for (let i = 1; i < M; i++) {
        for (let j = 0; j < N; j++) {
            A[i][j] += A[i - 1][j];
        }
    }

    // Prefix sum columns
    for (let i = 0; i < M; i++) {
        for (let j = 1; j < N; j++) {
            A[i][j] += A[i][j - 1];
        }
    }

    let ans = no;
    for (let i = 0; i < M; i++) {
        for (let j = 0; j < N; j++) {
            let d = A[i][j] - 777;
            if (d < 0) continue;
            if (d === 0) ans = yes;
            
            // Lower bound equivalent in JS
            let k = lowerBound(A[i], 0, j, d);
            if (k !== j && A[i][j] - A[i][k] === 777) {
                ans = yes;
            }
        }
    }

    console.log(ans);
}

function lowerBound(arr, left, right, value) {
    while (left < right) {
        let mid = Math.floor((left + right) / 2);
        if (arr[mid] < value) {
            left = mid + 1;
        } else {
            right = mid;
        }
    }
    return left;
}
main();