Task Description
Doom’s Day Algorithm
No. Doom’s day algorithm is not a method to compute which day the world will end. It is an algorithm
created by the mathematician John Horton Conway, to calculate which day of the week (Monday,
Tuesday, etc.) corresponds to a certain date.
This algorithm is based in the idea of the doomsday, a certain day of the week which always
occurs in the same dates. For example, 4/4 (the 4th of April), 6/6 (the 6th of June), 8/8 (the 8th of
August), 10/10 (the 10th of October) and 12/12 (the 12th of December) are dates which always occur
in doomsday. All years have their own doomsday.
In year 2011, doomsday is Monday. So all of 4/4, 6/6, 8/8, 10/10 and 12/12 are Mondays. Using
that information, you can easily compute any other date. For example, the 13th of December 2011 will
be Tuesday, the 14th of December 2011 will be Wednesday, etc.
Other days which occur on doomsday are 5/9, 9/5, 7/11 and 11/7. Also, in leap years, we have
the following doomsdays: 1/11 (the 11th of January) and 2/22 (the 22nd of Febrary), and in non-leap
years 1/10 and 2/21.
Given a date of year 2011, you have to compute which day of the week it occurs.
Input Format
The input can contain different test cases. The first line of the input indicates the number of test cases.
For each test case, there is a line with two numbers: M D. M represents the month (from 1 to 12)
and D represents the day (from 1 to 31). The date will always be valid.
Output Format
For each test case, you have to output the day of the week where that date occurs in 2011. The days
of the week will be: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday.
Sample Input
123456789 8
1 6
2 28
4 5
5 26
8 1
11 1
12 25
12 31
Sample Output
12345678 Thursday
Monday
Tuesday
Thursday
Monday
Tuesday
Sunday
Saturday