#include <iostream>
#include <algorithm>

using namespace std;

int main(){
	int num, max;
	int list[100] = {0};
	
	max = 0;

	while (cin >> num){
		list[num - 1]++;
		for (int i = 0; i < 100; i++){
			if (max <= list[i]){
				max = list[i];
			}
		}
		for (int j = 0; j < 100; j++){
			if (list[j] == max){
				cout << j + 1 << endl;
			}
		}
	}
	return 0;
}