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: 2, 4, ['9669', '8783', '8485', 'w', 'U', '4489', '1573', '6015', 'p', '1533', 'X', '3123', 'y', 'X', '4921', 'p', 'K', '9841', '8639', '1953']

SOLUTION: w84858783

PROBLEM: 6, 10, ['7301', '9619', 'A', 'I', '9195', 'y', 'W', '7281', '4467', 'D', 'J', '819']

SOLUTION: D44677281Wy

PROBLEM: 4, 5, ['T', 'F', 'g', 'S', 'Y', '2529', 'Z', '9049', 'a', 'j', 'd', 'i']

SOLUTION:
YS