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 find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output 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. Perform the operations in order, i.e., do not concatenate the elements and then reverse the string.
PROBLEM: 10, 10, ['f', '6369', 'B', 'p', 'T', '1169', '7861', 'I', 'G', '5077']

SOLUTION: 5077

PROBLEM: 14, 19, ['z', '1543', 'b', 'd', '3025', '4649', '1171', '3355', '307', 'u', 'v', '1651', 'U', '9105', 'I', 'p', 'L', 'N', '9843', 'm']

SOLUTION: 9843NLpI9105

PROBLEM: 7, 14, ['k', 'g', 'q', '7215', '9941', '681', '6881', '7293', '6149', '3521', 'r', 'q', '9251', '8703']

SOLUTION:
87039251qr3521614972936881