Problem:
What day is today?

Your task is to write a program which reads a date (from 2004/1/1 to 2004/12/31) and prints the day of the date. Jan. 1, 2004, is Thursday. Note that 2004 is a leap year and we have Feb. 29.

Input

The input is a sequence of datasets. The end of the input is indicated by a line containing one zero. Each dataset consists of two integers m and d separated by a single space in a line. These integers respectively represent the month and the day.

The number of datasets is less than or equal to 50.

Output

For each dataset, print the day (please see the following words) in a line.

Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday

Sample Input

1 1
2 29
0 0

Output for the Sample Input

Thursday
Sunday

Solution in Ruby (judge verdict: Accepted)

class WhatDayIsToday
  def initialize
    init_ndays
    init_week
    init_calendar
  end

  def init_ndays
    @ndays = Array.new(12, 31)
    @ndays[1] = 29
    @ndays[3] = @ndays[5] = @ndays[8] = @ndays[10] = 30
  end

  def init_week
    @week = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"]
  end

  def init_calendar
    c = 3
    @calendar = []
    12.times do |i|
      temp = []
      @ndays[i].times do |j|
        temp.push @week[c % 7]
        c += 1
      end
      @calendar.push temp
    end
  end

  def what_day(month, day)
    @calendar[month - 1][day - 1]
  end
end

calendar = WhatDayIsToday.new

while line = gets do
  month, day = line.chomp.split(" ").map(&:to_i)
  break if month == 0
  puts calendar.what_day(month, day)
end