func main()
	var n: int :: cui@inputInt()
	var s: [][]char :: #[n][]char
	var t: [][]char :: #[n][]char
	for i(0, n - 1)
		do s[i] :: cui@inputStr()
	end for
	for i(0, n - 1)
		do t[i] :: cui@inputStr()
	end for
	
	for i(0, n - 1)
		if(s[i] <> t[i])
			do cui@print("\{i + 1}\n")
			do cui@print("\{s[i]}\n")
			do cui@print("\{t[i]}\n")
		end if
	end for
end func