#include <stdio.h>
void main(void){
	int season = 0;
	scanf("%d",&season);
	if(season == 3 || season == 4 || season == 5 ){
		printf("spring");
	}else if(season == 6 || season == 7 || season == 8 ){
		printf("summer");
	}else if(season == 9 || season == 10 || season == 11 ){
		printf("fall");
	}else{
		printf("winter");
	}
}