#include<iostream>
#include<string>
#include<vector>
#include<climits>
using namespace std;
int main(){
int short_number = INT_MAX;
int long_number = INT_MIN;
vector<string> vect;
string s1;
while(getline(cin,s1)){
int len = s1.length();
if(len<short_number){
short_number = len;
}
if(len>long_number){
long_number = len;
}
vect.push_back(s1);
}
//输入结束,产生输出
for(int i = 0;i<vect.size();i++){
if(vect[i].length()==short_number){
cout<<vect[i]<<endl;
}
}
for(int i = 0;i<vect.size();i++){
if(vect[i].length()==long_number){
cout<<vect[i]<<endl;
}
}
}