include <stdio.h>

int main() {

int a, count, i;
count = 0;
scanf("%d", &a);
for (i = 2; i <= a - 1; i++) {
	if (a % i == 0) {
		count++;
	}
}
if (count == 0)
	printf("zhishu");
else
	printf("heshu");
return 0;

}