import java.util.Scanner;
public class Date {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in); //创建扫描对象
for(int i=1;i>0;){
System.out.println("please input:");
String s=scan.next();
switch(s){
case "sunday" :
System.out.println("today is "+ s);
break;
case "monday":
System.out.println("today is "+ s);
break;
case "tuesday":
System.out.println("today is "+ s);
break;
case "wednesday":
System.out.println("today is "+ s);
break;
case "Thursday":
System.out.println("today is "+ s);
break;
case "Friday":
System.out.println("today is "+ s);
break;
case "Saturday":
System.out.println("today is "+ s);
break;
default:
System.out.println("Sorry I don't know!");