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

Ex Input:
['I', 'W', 'from', 'B', 'and', 'Y', 'head', 'F', 'N', 'last', 'W', 'the', 'v', 'B', 'l', 'Pip,', 'U']

Ex Output:
IWfromBandYheadFNlastWthevBlPip,U


Ex Input:
['whole', 'U', 'l', 'P', 'x']

Ex Output:
wholeUlPx


Ex Input:
['the', 'w', 'n', 'body', 'd', 'infidel', 'S']

Ex Output:

thewnbodydinfidelS