package main

import "fmt"

func main() {
	var N int
	var birds = make(map[string]int)

	fmt.Scanf("%d", &N)

	for i := 1; i <= N; i++ {
		var birdType string
		fmt.Scanf("%s", &birdType)
		birds[birdType]++
	}

	var max int
	var maxType string
	for key, val := range birds {
		if birds[key] >= max {
			max = val
			maxType = key

			if (birds[key] == max) && (key < maxType) {
				maxType = key
			}
		}
	}
	fmt.Println(maxType)
}