#include<bits/stdc++.h>
using namespace std;
int main() {
	int a,b,c=0;
	cin>>a>>b;
	if(a>b){
		c=a;
		a=b;
		b=c;
		cout<<a<<b;}
		else{
		cout<<a<<" "<<b;
		}	 
    return 0;
}

/**************************************************************
	Problem: 1675
	User: huangcanwu
	Language: C++
	Result: Wrong Answer
****************************************************************/