inaccurate task description

This task has very one-sided approach for "correctness" of ip address. At least, description should define representation of addresses as dotted decimal or ambiguous cases should be removed from test list. For example, asserts for self-checking contains valid octal dotted ip "00250.00001.0000002.1", which should be treated as invalid for pass. Test #2 contains literally valid ip 10.10.10 (which expands to 10.10.0.10)