func main()
	var n: int :: cui@inputInt()
	var nums: []bool :: [true].repeat(10)
	for(1, n)
		var strs: [][]char :: cui@input().split(" ")
		var r: bool :: strs[4] = "YES"
		var tmp: []bool :: [!r].repeat(10)
		for i(0, 3)
			do tmp[strs[i].toInt(&)] :: r
		end for
		for i(0, 9)
			do nums[i] :: nums[i] & tmp[i]
		end for
	end for
	for i(0, 9)
		if(nums[i])
			do cui@print("\{i}\n")
		end if
	end for
end func