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: 4, 9, ['w', 'X', 'I', 't', '6513', 'l', '2163', 'k', 'z']

SOLUTION: zk2163l6513t

PROBLEM: 7, 25, ['4811', 'm', 'H', '471', '9541', 'D', 'k', '4375', 'z', '3377', '2099', 's', 'f', 'J', 'w', '1075', '5925', 'C', 'l', '6841', 'A', '1341', '5339', 'P', '3153', 'D']

SOLUTION: 3153P53391341A6841lC59251075wJfs20993377z4375k

PROBLEM: 3, 20, ['V', '4289', 'p', '8221', '4223', '6693', '1727', '6011', 'G', '2315', 'D', '651', 'q', 'T', 'A', '8733', 'V', '6403', 'D', '9905', '5831', '8441', '8007']

SOLUTION:
9905D6403V8733ATq651D2315G60111727669342238221p