func main()
	var N: int :: cui@input().toInt(&)
	var num: []int :: #[1000]int
	for(1, N)
		var S: []char :: cui@input()
		do num[^S - 2] :+ 1
	end for
	var max: int :: 0
	var ans: int :: 0
	for i(0, 999)
		if(num[i] >= max)
			do max :: num[i]
			do ans :: i
		end if
	end for
	do cui@print("\{ans}\n")
end func