#include<stdio.h>
void main(void)
{
int a,b,c,max;
printf("input three real numbers:\n");
scanf("%d%d%d",&a,&b,&c);
if (a>=b)
max=a;
else
max=b;
if (max>=c)
printf("%d",max);
printf("%d",c);
getch();
return 0;
}