In a week, Mortdecai collects 8 dozen  eggs every Tuesday and Thursday, and he delivers 3 dozen  eggs to the market and 5 dozen eggs to the mall. He then uses 4 dozen eggs to make a pie every Saturday. Mortdecai donates the remaining eggs to the charity by Sunday. How many  eggs does he donate to the charity?
Please reason step by step, and put your final answer within \boxed{}.
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