An uninteresting number (which I totally didn't make up only for this challenge) is created like this:
- Take a positive integer N
- Create a new number O by adding the digits of N at the end of N
- The final uninteresting number is O*N
For example for N=12:
- O = 1212
- O*N = 1212 * 12
- Final number is 14544
A positive integer N (N > 0) or your language's equivalent. You don't have to catch incorrect input.
The corresponding uninteresting number.
1 -> 11 2 -> 44 3 -> 99 10 -> 10100 174 -> 30306276
Shortest Code in Bytes wins.