#include<iostream>
#define loop(i,a,b) for(int i=a;i<b;i++)
#define rep(i,a) loop(i,0,a)
using namespace std;
int main(){
  int out[101]={0};
  int in;
  while(cin>>in)out[in]++;
  int max1=0;
  rep(i,101)max1=max(max1,out[i]);
  rep(i,101)if(max1==out[i])cout<<i<<endl;
} 