TASK DEFINITION: In this task you will be given a list of strings and you need to concatenate them.
PROBLEM: ['F', 'last', 'Q', 'the', 'T', 'k', 'tree-nails', 'Q', 'But', 'Z', 'v']

SOLUTION: FlastQtheTktree-nailsQButZv

PROBLEM: ['nothing', 'A', 'V', 'R', 'U', 'from', 'd', 'that', 'e', 'by', 'x', 'I', 'B']

SOLUTION: nothingAVRUfromdthatebyxIB

PROBLEM: ['x', 'can9t', 'L']

SOLUTION:
xcan9tL