DIVISIBLE BY 7 AND 3

Write a program to find whether a given number is divisible by both 7 and 3.


Input Format: 
Input consists of a single integer.
Output Format:
Output consists of a single line. Refer sample output for the format.

Sample Input 1: 
21

Sample Output 1 : 
21 is divisible by both 7 and 3

Sample Input 2: 
18

Sample Output 2: 
18 is not divisible by both 7 and 3

Code:

  #include<stdio.h>
int main(){
  int a;
  scanf("%d",&a);
  if((a%3==0)&&(a%7==0))
    printf("%d is divisible by both 7 and 3",a);
  else
    printf("%d is not divisible by both 7 and 3",a);
  
  return 0;
}