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

Ex Input:
['w', 'will', 'y', 'S', 'i', 'felicity,', 'y', 'the', 'x']

Ex Output:
wwillySifelicity,ythex


Ex Input:
['p', 't', 'bade', 'k']

Ex Output:
ptbadek


Ex Input:
['d', 'U']

Ex Output:

dU