#include<iostream>
#include<algorithm>

using namespace std;
int main(){
	int a[101]={0},n=0,saidai[100]={0},m=0;
	while(cin>>n){
		a[n]++;
	}
	for(int i=1;i<101;i++){
		if(saidai[m]<a[i]){
			for(int x=0;x<=m;x++){
				saidai[x]=0;
				m=0;
			}
			saidai[m]=i;
		}
		else if(saidai[m]==a[i]){
			saidai[m+1]=saidai[m];
			saidai[m]=i;
			m++;
		}
	}
	sort(saidai,saidai+100);
	for(int i=0;i<=100;i++){
		if(saidai[i]!=0){
			cout<<saidai[i]<<endl;
		}
	}
	return 0;
}