# That Friend

Discrete Mathematics Level pending

Three of my friends and I are going to split the bill for dinner. Bill and I will each contribute an odd number of dollars, while Celia contributes a number of dollars that is a multiple of $$3$$. Nikhil will either contribute nothing, or $$\textbf{steal}$$ one or two dollars. In how many ways can we pay a $$30$$ bill?

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