#include <stdio.h>
#include <stdlib.h>

int main(){
    int d[100];
    int maximize[100];

    int buf;
    while( scanf( "%d",&buf ) != EOF  ) d[buf-1]++;

    int buff = 0;
    for( int i = 0;i < 100;i++ ){
        if( d[i] > buff ) buff = d[i];
    }

    for( int i = 0;i < 100;i++ ){
        if( d[i] >= buff ) printf( "%d\n",i+1 );
    }
    return 0;
}