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, 9, ['4219', 'x', '2133', 'S', 'S', '6737', 'V', 'O', '4829', 'L', 'J', 'B', '4759', '5367', 'r']

SOLUTION: x2133SS6737VO4829

PROBLEM: 7, 7, ['3713', 'Y', 'Q', 't', 'a', '1235', 'f', '1953', 'B', '2695', 'I', '2265']

SOLUTION: f

PROBLEM: 7, 9, ['Q', '8017', '9957', 'S', '3681', 'E', 'F', 'x', '6947']

SOLUTION:
Fx6947