public static void main(String args[]) {
        ConvertNumberIntoBase26 cni = new ConvertNumberIntoBase26();
        System.out.println(cni.numberToBase26(704));
        System.out.println(cni.base26ToNumber("AAB"));

        System.out.println(cni.numberToBase26(52));
        System.out.println(cni.base26ToNumber("AZ"));

        System.out.println(cni.numberToBase26(13));
        System.out.println(cni.base26ToNumber("M"));

        System.out.println(cni.numberToBase26(126));
        System.out.println(cni.base26ToNumber("DV"));
    }
Given a positive integer, return its corresponding column title as appear in an Excel sheet.
https://leetcode.com/problems/excel-sheet-column-title/
src/com/interview/misc/ConvertNumberIntoBase26.java