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: 13, 23, ['4763', '2429', 'l', '3433', 'W', '4653', 'n', '3171', '555', 'N', '6615', 'G', 'E', 's', 'l', '5877', '7441', '9415', 'w', '5903', '8227', '89', '493', '7633']

SOLUTION: 4938982275903w941574415877lsE

PROBLEM: 7, 8, ['l', 'D', '9033', '4155', '9215', '4615', '5411', 'x', '6533', 'z', 'p', 'm', '6559', '6803', 'p', 'm', '4681', 'b', '6531', 's', '8711', '1385', 'A', 'U', 'b']

SOLUTION: x5411

PROBLEM: 11, 26, ['5251', 'z', '8925', 'u', '8511', '6555', '9519', 'd', '9621', 'm', 'C', '9441', '1949', 'X', '4107', 'd', '9397', 'l', 'L', '4959', '8583', 'z', 'B', 'D', 'k', '4251', 'I', 'R', '9673', '1981']

SOLUTION:
4251kDBz85834959Ll9397d4107X19499441C