import java.util.Scanner;
public class Main{
public static void main(String arg[]){
Scanner sc=new Scanner(System.in);
int y=sc.nextInt();
switch(y){
case 12:
case 1:
case 2:
System.out.println(“冬季”);
break;
case 3:
case 4:
case 5:
System.out.println(“春季”);
break;
case 6:
case 7:
case 8:
System.out.println(“夏季”);
break;
case 9:
case 10:
case 11:
System.out.println(“秋季”);
break;
default :
System.out.print(“月份输入错误”);
}

}

}