C++ :

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