View Code of Problem 89

import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);	
		String s = scanner.nextLine();
		for(int i=0; i<s.length(); i++) {
			if(s.charAt(i) == 'Y') {
				break;
			}
			if(s.charAt(i) == 'M') {
				System.out.println("Monday");
			}else if(s.charAt(i) == 'T') {
				i++;
				if(s.charAt(i) == 'u') {
					System.out.println("Tuesday");
				}else if(s.charAt(i) == 'h') {
					System.out.println("Thursday");
				}else {
					System.out.println("Wrong data");
					i--;
				}
			}else if(s.charAt(i) == 'W') {
				System.out.println("Wednesday");
			}else if(s.charAt(i) == 'F') {
				System.out.println("Friday");
			}else if(s.charAt(i) == 'S') {
				i++;
				if(s.charAt(i) == 'a') {
					System.out.println("Saturday");
				}else if(s.charAt(i) == 'u') {
					System.out.println("Sunday");
				}else {
					System.out.println("Wrong data");
					i--;
				}
			}else {
				System.out.println("Wrong data");
			}
		}
	}		
}