The “reverse and add” method is simple: choose a number, reverse its digits and add it to the original.
If the sum is not a palindrome (which means, it is not the same number from left to right and right to left),
repeat this procedure.
195 Initial number
9339 Resulting palindrome
Your job is, given a positive number N, determine if it is a multiple of eleven.
The input is a file such that each line contains a positive number.
A line containing the number 0 is the end of the input.
The given numbers can contain up to 1000 digits.
The output of the program shall indicate, for each input number, if it is a multiple of eleven or not.