// No.2350 Four Seasons
package main

import "fmt"

func main() {
	var x int
	fmt.Scan(&x)
	switch x {
	case 3, 4, 5:
		fmt.Println("spring")
	case 6, 7, 8:
		fmt.Println("summer")
	case 9, 10, 11:
		fmt.Println("fall")
	case 12, 1, 2:
		fmt.Println("winter")
	}
}