  x_array = [0,1].repeated_permutation(n).to_a.map{|ele| ele.size.times.select{|i| 1 == ele[i]}}
  y_array = [0,1].repeated_permutation(m).to_a.map{|ele| ele.size.times.select{|i| 1 == ele[i]}}
  combi = x_array.product(y_array)
  count = 0
  combi.each do |pair|
    judge = false
    pair[0].each do |x|
      pair[1].each do |y|
       judge =  judge == true ? false : true if table[x][y] == 1
      end
    end
    count += 1 if judge == true
  end
  
  puts count % 998244353