#include <iostream>
using namespace std;
int main()
{
int a;
int aMaxVal = 10000;
cin>>a;
if(a < aMaxVal){
int xDigit,yDigit;
xDigit = a % 10;
yDigit = a % 100;
if(xDigit < yDigit)
cout<<yDigit<<"\n"<<xDigit<<endl;
else if(yDigit < xDigit)
cout<<xDigit<<"\n"<<yDigit<<endl;
}
return 0;
}