Nice :-)

In Erlang etc yes. In Java they look just bad.

Java's Lamba looks bad.

Have the same error.
Just ignore and submit;

123
234
345

U have 3 time multipled 3
2 time multipled 2 and 4

do
123 456 789
789 123 456
456 789 123

912 345 678
678 912 345
345 678 912

891 234 567
567 891 234
234 567 891

Almost all language have it.

No part of JS for browsers so for me doesnt count.
Anyway it's can teach something