#include<stdio.h>

int main()
{
int a,b,c;
printf("Enter Three Numbers:\n");
scanf("%d%d%d",&a,&b,&c);

if(a>b && a>c)
{
  printf("Greatest Integer = %d",a);
}

if(b>a && b>c)
{
  printf("Greatest Integer = %d",b);
}
 
if(c>a && c>b)
{
  printf("Greatest Integer = %d",c);
}
 
return 0;
}
     
           
Note: Need to be arranged in compiler after copied
   

 OutPut:

Enter Three Numbers: 3 6 9 Greatest Integer = 9