Help me in solving CCLEARN problem

My issue

they have problem with me i give but so many times have problem

My code

print(18)

Learning course: Practice C
Problem Link: CodeChef: Practical coding for everyone

@jatinkumar0912
U have to do it like this.

#include <stdio.h>

int main(void) {
	// your code goes here
	int c;
	scanf("%d",&c);
	printf("%d",c*2);
	return 0;
}