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: 13, 15, ['I', 'y', '3037', 'i', 'I', 'x', 'r', 'i', 'g', '1141', 'z', '8639', 'v', 'p', '7901', 'A', 'e', '7599']

SOLUTION: 1097pv

PROBLEM: 2, 3, ['6875', 'D', 'r']

SOLUTION: rD

PROBLEM: 2, 7, ['9487', 'f', 'Z', 'W', '9333', 'o', '1359', '5189', 'e', 'b', '7467', 'm', '2337', '5137', 'n', '7537', 'L', 't', '8253', 'm', '167']

SOLUTION:
9531o3339WZf