My little brother's challenge for you!

Let's write every natural number \(n>1\) in form of a table as below:

\(\text{A}\)\(\text{B}\)\(\text{C}\)\(\text{D}\)\(\text{E}\)
2345
9876
10111213
17161514
18192021

Based on the table, in what column would the number 2015 appear?

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