TASK DEFINITION: In this task, you are given inputs 'i', 'j', and A, where 'i' and 'j' are integers and A is a list. A list is shown by two brackets and comma-separated numbers and characters inside, like ['1', '12', 'l']. You need to concatenate all elements of A from the ith element to the jth element, and then reverse the resulting 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 reverse first and then concatenate.
PROBLEM: 20, 22, ['4065', 'I', '7721', 'x', '8903', 'S', '8877', 'W', 'j', '1835', '6933', '549', '7799', '8789', 'c', 'M', '6183', '3319', 'h', '8551', 'r', '2957', 'o', 'W', '9497', 'j', 'g', '3619']

SOLUTION: 7592r1558

PROBLEM: 5, 14, ['E', 't', '3441', '459', '6559', 'q', 'b', '2583', 'Z', 'X', 'F', 'j', '601', '2137', 'S', '9739', 'c', 'I', 'l', '4443']

SOLUTION: 7312106jFXZ3852bq9556

PROBLEM: 1, 8, ['9669', '9577', '2831', 'Y', 'y', 'q', 'f', 'b', 'L', 'v', '5545', '7305']

SOLUTION:
bfqyY138277599669