INFO [2017-11-20 14:55:44] $x
INFO [2017-11-20 14:55:44] list(A = 1:2e+05, B = 50000:3e+05)
INFO [2017-11-20 14:55:44] 
INFO [2017-11-20 14:55:44] $filename
INFO [2017-11-20 14:55:44] NULL
INFO [2017-11-20 14:55:44]