import java.util.Scanner;


public class Code010 {
    public static void main(String[] args) {
		Scanner input = new Scanner(System.in);
		System.out.println("请输入任意一个月份(1~12):");
		int month = input.nextInt();
		switch (month) {
		case 1:
		case 2:
		case 3:
			System.out.println("第一季度");
			break;
		case 4:
		case 5:
		case 6:
			System.out.println("第二季度");
			break;
		case 7:
		case 8:
		case 9:
			System.out.println("第三季度");
			break;
		case 10:
		case 11:
		case 12:
			System.out.println("第四季度");
			break;
		default:
			System.out.println("输入月份错误！");
			break;
		}
	}
}