cpp/C5/P4/c4-2.c

#include <stdio.h>
int main()
{
   float a,b,t;
   scanf("%f,%f",&a,&b);
   if(a>b)
    {
      t=a;
      a=b;
      b=t;
     }
   printf("%5.2f,%5.2f\n",a,b);
   return 0;
}