n, m = gets.chomp.split.map(&:to_i)
trains = Array.new(n){0}

while tmp = gets
  tmp = tmp.chomp.split.map(&:to_i)
  (0..n-1).each do |k| 
    trains[k] += tmp[k]
  end 
sum = 0 
  (0..n-1).each do |i| 
    sum = trains[i]
      if sum == 777 
        puts 'YES'
        exit
      end 
    (i+1..n-1).each do |j| 
      sum += trains[j]
      if sum == 777 
        puts 'YES' 
        exit
      end 
    end 
  end 
puts 'NO'
exit
end