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: 3, 6, ['A', '6949', '2045', '119', '1373', '9613']

SOLUTION: 316937319115402

PROBLEM: 10, 14, ['q', 'M', 'D', 'x', 'L', 'B', '519', '2767', 'P', '3341', '7817', 'Q', 'd', '3819']

SOLUTION: 9183dQ71871433

PROBLEM: 12, 23, ['o', '4559', '7877', '9171', '7937', '5485', '7211', 'w', '9515', '7237', 'o', '7133', 'B', '1879', 'W', '8141', 'K', '6137', '8009', '6709', 'g', '3289', '2093', '991', '5055', 'q']

SOLUTION:
39029823g907690087316K1418W9781B3317

