#include<iostream>
using namespace std;
 
int main(){

int numbers[100] , x ,y, i;

while ( cin >> x ){
numbers[x - 1]++;
}

y = 0;
for( i = 0 ; i < 100 ; i++ ){
??????if (numbers[i] > y){
      y = numbers[i];
    }
}

for ( i = 0 ; i < 100 ; i++ ) {
     if ( y == numbers[i] ){
       cout << i + 1 << endl;
      }
}

return 0;
}