#include <bits/stdc++.h>

using namespace std;
#define loop(i,a,b) for(int i=(a); i<int(b); i++)
#define rep(i,b) loop(i,0,b)

int main(){
	int a[101];
	rep(i, 101) a[i] = 0;
	int n;
	int m = 0;
	while(cin >> n){
		a[n]++;
		m = max(m, a[n]);
	}
	rep(i, 101) if(m == a[i]) cout << i << endl;
}