Find greatest of 3 number using conditional operator

#include<stdio.h>

#include<conio.h>

int main()

{

 int n1,n2,n3;

 prinft("Enter Numbers n1, n2, n3 : ");

 scanf("%d"%d%d",n1,n2,n3);

 printf("Greatest=%d",n1>n2?n1>n3?x:z:y>z?y:z);

 getch();

 return 0;

}