TASK DEFINITION: In this task you will be given a list of strings and you need to concatenate them.
PROBLEM: ['avail;', 'J', 'R', 'e']

SOLUTION: avail;JRe

PROBLEM: ['K', 'to', 'J', 'S', 'now,', 'B', 'T', 't']

SOLUTION: KtoJSnow,BTt

PROBLEM: ['a', 'o', 'upon', 'u']

SOLUTION:
aouponu