C :

#include<stdio.h>
int main ()
{
	float a,b,m;
	scanf("%f%f",&a,&b);
	if (a>b)
	{m=a;a=b;b=m;}
	printf("%.2f %.2f\n",a,b);
	getchar();
	getchar();
	return 0;
}

C++ :

#include <cstdio>
#include <cmath>
int main (void)
{
	double a,b;
	scanf("%lf%lf",&a,&b);
	if(a<b)
		printf("%.2f %.2f\n",a,b);
	else printf("%.2f %.2f\n",b,a);
	return 0;
}

Python :

# coding=utf-8
s = input(). split()
print(format(min(map(float, s)), ".2f"), format(max(map(float, s)), ".2f"))