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Column name from a given column number
Easy Accuracy: 30.03% Submissions: 27397 Points: 2

Given a positive integer, return its corresponding column title as appear in an Excel sheet.
MS Excel columns has a pattern like A, B, C, … ,Z, AA, AB, AC,…. ,AZ, BA, BB, … ZZ, AAA, AAB ….. etc. In other words, column 1 is named as “A”, column 2 as “B”, column 27 as “AA”.

Input:
The first line of each input consists of the test cases. And, the second line consists of a number N.

Output:
In each separate line print the corresonding column title as it appears in an Excel sheet.

Constraints:
1 ≤ T ≤ 70
1 ≤ N ≤ 4294967295

Example:
Input:
2
28
13
Output:
AB
M

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Column name from a given column number

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