class max

/* Note:max*/
#include "stdio.h"
#include "math.h"

main()
{   
   int x,y,z;
   int max,min,middle;
   scanf("%d,%d,%d",&x,&y,&z);
   if(x>y)
   max=x;
   else
      max=y;
   if(max<z)
      max=z;
      else 
      max=max;
      
      printf("max is %d\n",max);
}