#include<stdio.h>
int main()
{
	int x;
	scanf("%d", &x);
	if (3 <= x && x <= 5)
		printf("spring\n");
	else if (6 <= x && x <= 8)
		printf("summer\n");
	else if (9 <= x && x <= 11)
		printf("fall\n");
	else
		printf("winter\n");
	return 0;
}