C++ :

#include "stdio.h"
#define max(a,b,c) if(b>a) a=b;if(c>a) a=c;
double m(double a,double b,double c)
{
   if(b>a) a=b;
   if(c>a) a=c;
   return a;
}
int main(int argc, char* argv[])
{
	double a,b,c;
	while(~scanf("%lf%lf%lf",&a,&b,&c))
	{
	  printf("%.3f\n",m(a,b,c));
	    max(a,b,c);
	  printf("%.3f\n",a);
	}
	return 0;
}