//输入某年某月某日，判断这一天是这一年的第几天？
import java.util.Scanner;
public class Test9{
	public static void main(String[] args){
		Scanner scanner=new Scanner(System.in);
		System.out.println("请输入年，月，日：");
		int year=scanner.nextInt();
		int month=scanner.nextInt();
		int day=scanner.nextInt();
		int num=0;
		switch(month){
			case 12:
					num+=30;
			case 11:
					num+=31;
			case 10:
					num+=30;
			case 9:
					num+=31;
			case 8:
					num+=31;
			case 7:
					num+=30;
			case 6:
					num+=31;
			case 5:
					num+=30;
			case 4:
					num+=31;
			case 3:
					if((year%4==0&&year%100!=0)||year%400==0)
						num+=29;
					
					else
						num+=28;
			case 2:
					num+=31;
		}	
		num+=day;
		if(month<1||month>12)
			System.out.println("月份输入有误");
		else
			System.out.println(year+"年"+month+"月"+day+"日是这一年的第"+num+"天！");
		
	}
}