n, m = gets.chomp.split.map(&:to_i)
p m
p n

trains = Array.new(m).map{Array.new(n,0)}
p trains

  (0..m-1).each do |i|
    tmp = gets.chomp.split.map(&:to_i)
    (0..n-1).each do |j|
      trains[i][j] = tmp[j]
    end
  end
  p trains
  p trains[0][1]

  (0..m-1).each do |i|
    (0..n-2).each do |j|
      trains[i][j+1] += trains[i][j]
    end
  end
  p trains

  (0..m-2).each do |i|
    (0..n-1).each do |j|
      trains[i+1][j] += trains[i][j]
    end
  end
  p trains

  (0..m-1).each do |i|
    if (trains[i][0] == 777 || trains[i][n-1] == 777)
      puts "YES"
      exit
    end
    (1..n-1).each do |j|
      (0..n-2).each do |k|
        if trains[i][j] - trains[i][k] == 777
          puts "YES"
          exit
        end
      end
    end
  end
    
  puts 'NO'