题解 | #四季#

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String date = scanner.next();
        String m = date.substring(4,6);
        int month = Integer.parseInt(m);
        
        if(month >= 3 && month < 6) {
            System.out.println("spring");
        } else if(month >= 6 && month < 9) {
            System.out.println("summer");
        } else if(month >= 9 && month < 12) {
            System.out.println("autumn");
        } else if(month == 12 || (month >= 1 && month < 3)) {
            System.out.println("winter");
        } else {
            System.out.println("Input error!");
        }
    }
}