Problem:
Day of Week

The 9th day of September 2017 is Saturday. Then, what day of the week is the X-th of September 2017?

Given a day in September 2017, write a program to report what day of the week it is.

Input

The input is given in the following format.

X

The input line specifies a day X (1 ≤ X ≤ 30) in September 2017.

Output

Output what day of the week it is in a line. Use the following conventions in your output: "mon" for Monday, "tue" for Tuesday, "wed" for Wednesday, "thu" for Thursday, "fri" for Friday, "sat" for Saturday, and "sun" for Sunday.

Sample Input 1

1

Sample Output 1

fri

Sample Input 2

9

Sample Output 2

sat

Sample Input 3

30

Sample Output 3

sat

Solution in Python3 (judge verdict: Accepted)

from datetime import date
days = {i: d for i, d in enumerate(["mon", "tue", "wed", "thu", "fri", "sat", "sun"])}
day = int(input())
result = date(2017, 9, day)
index = result.weekday()
print(days[index])