Problem:
Score : 200 points

Problem Statement

La Confiserie d'ABC sells cakes at 4 dollars each and doughnuts at 7 dollars each.
Determine if there is a way to buy some of them for exactly N dollars. You can buy two or more doughnuts and two or more cakes, and you can also choose to buy zero doughnuts or zero cakes.

Constraints

N is an integer between 1 and 100, inclusive.

Input

Input is given from Standard Input in the following format:

N

Output

If there is a way to buy some cakes and some doughnuts for exactly N dollars, print Yes; otherwise, print No.

Sample Input 1

11

Sample Output 1

Yes

If you buy one cake and one doughnut, the total will be 4 + 7 = 11 dollars.

Sample Input 2

40

Sample Output 2

Yes

If you buy ten cakes, the total will be 4 \times 10 = 40 dollars.

Sample Input 3

3

Sample Output 3

No

The prices of cakes (4 dollars) and doughnuts (7 dollars) are both higher than 3 dollars, so there is no such way.

Solution in C (GCC 5.4.1) (judge verdict: Wrong Answer)

#include <stdio.h>

int main(void) {
	int N, K, X;
	scanf("%d", &N);
	if(N<4){
		printf("No\n");
	}
	else{
		K=N/4;
		N=N%4;
		if(N==0){
			printf("Yes\n");
		}
		else{
		            X=N/3;
		            K=K-X;
			N=N%3;
			if(N==0){
				if(K<0){
					printf("No\n");
				}
				else{
				printf("Yes\n");
				}
			}
			else{
				printf("No\n");
			}
		
		}
	}
	return 0;
}