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: 1, 7, ['j', 'P', '5633', 'g', 'z', '3163', '8849', '1267', '1157', '6987', '9743']

SOLUTION: 94883613zg3365Pj

PROBLEM: 2, 11, ['7391', '6663', '477', '4991', '1033', 'c', 'X', 's', '2517', 'i', 'M', '8437', 'J']

SOLUTION: Mi7152sXc330119947743666

PROBLEM: 3, 16, ['4405', '5875', 'Z', '9847', '2849', 'f', 'S', 't', 'z', '7591', '3013', '5659', 'J', 'D', '6249', '6437', '1273', 'N']

SOLUTION:
73469426DJ956531031957ztSf94827489Z