c program to multiply given number by 4 using bitwise operators

 /*    Write a c program to multiply given number by 4 using bitwise operators*/

 #include <stdio.h>

 void main()
 {
long number, tempnum;

printf("Enter an integer\n");
scanf("%ld",&number);
tempnum = number;
number = number << 2;   /*left shift by two bits*/

printf("%ld x 4 = %ld\n", tempnum,number);
}

/*------------------------------
Output
Enter an integer
15
15 x 4 = 60

RUN2
Enter an integer
262
262 x 4 = 1048
---------------------------------*/