Write a python program that prints a one$-$month calendar. User will specify the number of days in a month and the day of the week on which the month begins. The number in a month can not be smaller than $28$ or bigger than $31.$ Similarly, starting day of the week can not exceed $7$ and be less than $1.$ If user gives wrong input, show proper error message.

Sample runs of your code $(4$ runs$)$

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