Description

• Write a program to input a year n and output out the Mother’s day (2nd Sunday of May) in that year.
• Your program must be able to show the Mother’s days in the past and in the future.
• We have 1582 < n ≤ 2147483647 (Hint: 1583/1/1 is Saturday.)
• If the user’s input is invalid, output “invalid\n”.

Input

Integer n, such that 1582 < n ≤ 2147483647 

Output

M/D, such that M is tthe month and D the date.

Sample Input  Download

Sample Output  Download

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