C :

#include<stdio.h>
int main(){
int i,j;
	double a[3],temp;
	scanf("%lf %lf %lf",&a[0],&a[1],&a[2]);
	for (i=0;i<2;i++)
		  for (j=i+1;j<3;j++)
			if (a[i]>a[j])
			{
				temp=a[i];
				a[i]=a[j];
				a[j]=temp;
			}
for (i=0;i<2;i++)
  printf("%.2lf ",a[i]);
printf("%.2lf",a[i]);
printf("\n");
return 0;
}

C++ :

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

Pascal :

var
  a:array[1..3] of real;
  i,j:longint;
  t:real;
begin
  for i:=1 to 3 do read(a[i]);
  readln;
  for i:=1 to 2 do
    for j:=i+1 to 3 do
    if a[i]>a[j] then begin t:=a[i]; a[i]:=a[j]; a[j]:=t; end;
  for i:=1 to 2 do write(a[i]:0:2,' ');
  writeln(a[3]:0:2);
end.

Java :

import java.util.ArrayList;
import java.util.Collections;
import java.util.Scanner;
public class Main {
	public static void main(String args[]) {
		Scanner cin=new Scanner(System.in);
		ArrayList<Double> arr=new ArrayList<Double>();
		arr.add(cin.nextDouble());
		arr.add(cin.nextDouble());
		arr.add(cin.nextDouble());
		Collections.sort(arr);
		System.out.printf("%.2f %.2f %.2f\n", arr.get(0),arr.get(1),arr.get(2));
	}
}

Python :

print ' '.join("%.2f" %x for x in sorted(float(x) for x in raw_input().split()))