#include<stdio.h>
#include<conio.h>

void main()
{
    int a,b,c;
    clrscr();

    printf(" Enter Three Values : ");
    scanf("%d %d %d",&a,&b,&c);

    if((a>b)&&(a>c))
        printf("\n %d is a Greatest Number",a);

    if((b>c)&&(b>a))
        printf("\n %d is a Greatest Number",b);

    if((c>a)&&(c>b))
        printf("\n %d is Greatest Number",c);

    getch();
}

 OUTPUT:

 Enter Three Values :  10 5 36
 
 36 is Greatest Number