Find out the next two letters in the series.
A, C , B , D , E , G , F , _ , _ ,.....................
A, C , B , D , E , G , F , _ , _ ,.....................
Answer
It is a composition of two patterns
1. Skip one letter and take the next one which is not already selected in any side.(I mean towards left or right and consider left first)
Eg: A ----> C
2. find the nearest neighbor which is not selected in any side.(consider left first)
Eg: C------>B
Next two letters H , I
A, C , B , D , E , G , F , H , I ,.....................
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