In [50]: runfile('G:/UBCO/2020-2021/Python/20200920/merge_lists.py', wdir='G:/UBCO/2020-2021/Python/20200920')
[1, 2, 5, 12, 6, 7]
[ 1 2 5 12 6 7]
[[ 1 2 3 4]
[-5 -6 -7 -8]]
[[ 1 -5]
[ 2 -6]
[ 3 -7]
[ 4 -8]]
In [51]: