#include <iostream>
#include <stdio.h>
#include<math.h>
using namespace std;
 
int main() {
	double a, b, c;
    cin >> a;
    cin >> b;               //Вводим нужные нам действительные числа.
    cin >> c;
    if((a >= b) && (b >= c))   //Если a >= b >= c, то удваиваем их.
    {
    	a*=2;
    	b*=2;
    	c*=2;
    }
    else    // Во всех иных случаях находим абсолютное значение данных чисел.
    {
        a = fabs(a);
        b = fabs(b);
        c = fabs(c);
    }	
    printf("a = %3.2f, b = %3.2f, c = %3.2f",  a, b, c); 
	return 0;
}

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