In this task you will be given a list of strings and you need to concatenate them.

['S', 'two', 'l', 'O']
StwolO

['and', 'c', 'W']
andcW

['x', 'w', 'still', 't', 'idea', 'U', 'd', 'v', 'and', 't', 'N', 'i']

xwstilltideaUdvandtNi