#include<bits/stdc++.h>
#define rep(i,n) for(int i=0; i<n; i++)
#define INF 1000000
using namespace std;
int main(){
    vector<int> vec(101,0);
    int n;
    while(cin >> n){
        vec[n]++;
        int tmp = 0;
        rep(i,vec.size()){
            tmp = max(tmp,vec[i]);
        }
        vector<int> ans;
        rep(i,vec.size()){
            if(tmp == vec[i]) ans.push_back(i);
        }
        sort(ans.begin(),ans.end());
        rep(i,ans.size()) cout << ans[i] << endl;
    }
    return 0;
}
