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Three zebras take part in a contest. The winner is the zebra with the most number of stripes. Runa has $$15$$ stripes, Zara has $$3$$ more than Runa. Runa has $$5$$ fewer stripes than Biba. How many stripes does the winner have? 
Options:
(1) $$16$$ 
(2) $$18$$ 
(3) $$20$$ 
(4) $$21$$ 
(5) $$23$$ 