PWS -- Shift Creation

Dear Experts,

My Client have Below Requirement of Shift Creation ..

There are 2 Shifts.

1) 8AM-8PM

2) 8PM-8AM

And they have given below options of Creation shift.

1) If employee works 2 days next day should be off -- Shift Can be start any Day.

or

2) If employee works 4 Days -- Next 3 Days should be off -- Shift Can Start any day

or

3) if one Day Work Next day should be off. -- Shift Can Start Any day.

Need your Suggestion, Which Option is possible to configure in the system.