My solution to iKariera Challenge problems.

The second assert in WeightForWeightTest.cs seems to be wrong.
"2000 10003 1234000 44444444 9999 11 11 22 123" is an input string.
"11 11 2000 10003 22 123 1234000 44444444 9999" is meant to be an output, but the task says that in case 2 numbers have the same weight, sort them by the order they appear in the input string.
So I think it should look like "2000 11 11 10003 22 123 1234000 44444444 9999", because 2000 and 11 have the same weight, but 2000 appears earlier than 11.