Author
anonymous
almost 7 years ago
Python
CPython 3.6.2
$ python3 prog.py
[[1, 2]] [[1, 2], [7, 8], [9, 10], [5, 6], [3, 4], [12, 13]] [[7, 8], [5, 6], [12, 13], [9, 10], [3, 4]]