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: 4, 10, ['6935', '8323', '6167', 'I', 'G', 'f', '303', '3387', '3257', '3069', 'q', 'r', '187', 'k', '6031', '8221', '721']

SOLUTION: 960375237833303fGI

PROBLEM: 8, 11, ['h', 'i', '9323', '2849', '5235', '985', 'I', 'i', 'M', 'd', '3963', '6627', 'm', 'z', '7285']

SOLUTION: 3693dMi

PROBLEM: 7, 8, ['2813', 'P', '7029', 'E', 'G', '6611', '3313', '6453', 'q', 'v', '4391', '4773', 'X', '455', '5543']

SOLUTION:
35463133