백준 1924 java

import java.util.Scanner;

public class bj1924 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int x, y;
        int i;
        int date = 0;
        int day = 0;

        x = scanner.nextInt();
        y = scanner.nextInt();
        for(i = 1; i < x; i++)
        {
            if(i == 2)
            {
                date += 28;
            }
            else if(i == 1 || i == 3 || i == 5|| i == 7|| i == 8|| i == 10|| i == 12)
            {
                date += 31;
            }
            else
            {
                date += 30;
            }
        }
        date += y;
        day = date % 7;
        if(day == 1)
        {
            System.out.println("MON");
        }
        else if(day == 2)
        {
            System.out.println("TUE");
        }
        else if(day == 3)
        {
            System.out.println("WED");
        }
        else if(day == 4)
        {
            System.out.println("THU");
        }
        else if(day == 5)
        {
            System.out.println("FRI");
        }
        else if(day == 6)
        {
            System.out.println("SAT");
        }
        else
        {
            System.out.println("SUN");
        }

        scanner.close();
    }
}