TASK DEFINITION: In this task, you are given inputs i,j, and A, where i and j are integers and A is a list. You need to concatenate all elements of A from the ith element to the jth element, and print the resultant string. i and j will be non-negative, and will always have a value less than the length of A. i will always be less than j.
PROBLEM: 2, 7, ['T', 'L', 'F', 'W', '9781', 'Y', '4499']

SOLUTION: LFW9781Y4499

PROBLEM: 1, 2, ['M', 'G', '8763', '6617', 's', 't']

SOLUTION: MG

PROBLEM: 11, 19, ['o', '8133', 'J', '8313', 'g', 'n', '4615', 'V', 'O', 'v', '6211', 'c', '6549', 's', '9169', '791', 'f', '4247', 'B', '6921', '9831', 'm', '6407', '9339', 'a', 'W', '8115']

SOLUTION:
6211c6549s9169791f4247B