the two strings "AAABBC" and "ABBCCC" will result in true being returned from this because they have the same length and contain the same chars. problem is that they don't contain the same number of each char.

Your problem is that Main method has some sort of private access in your code so It can be called from outside. I addeded access modificator and your code passed.

C# version changed so please post your exact code so I can try to pass it, fix it or scale the case to codewars developers

There aren't any test methods for c# so can't pass the tests and can't submit.