Given a number N, find the smallest even number E such that E > N and digits in N and E are same.
Given a number N, find the smallest even number E such that E > N and digits in N and E are same.

Print NONE otherwise.

Signed-off-by: Abhijit Kumar <abhijitkumar2003[at]gmail[dot]com>

abhijitkumar01/ConSolns