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a = [1,2,3,4] b = [5,6,7,8] a.map.each do |x| b.map.each do |y| if !(x == 1 && y == 7) && !(x == 4 && y == 8) puts "#{x} and #{y}" end end end
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1 and 5 1 and 6 1 and 8 2 and 5 2 and 6 2 and 7 2 and 8 3 and 5 3 and 6 3 and 7 3 and 8 4 and 5 4 and 6 4 and 7