Donald draws ten mathematical objects that can be labelled from 3-12. He puts them into a natural sequence as follows:10 , 12 , 11 , 7 , 6 , a , b , c , d , e
where a,b,c,d,e are the digits 3,4,5,8,9 in some order. What is the five-digit number abcde?
Source: Ritangle 2020
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