C :

#include<stdio.h>
int main()
{
	int n;
	while(scanf("%d",&n)==1)
	{
		if(n%6!=0)printf("ha ha!!!\n");
		else printf("do not escape after school!\n");
	}
	return 0;
}

C++ :

#include <stdio.h>
int main()
{
	int n;
	while(scanf("%d",&n)!=EOF)
	{
		if(n%6==0)
		printf("do not escape after school!\n");
		else
		printf("ha ha!!!\n");
	}
	return 0;
}