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 concatenate all elements of A from the ith element to the jth element, and print 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.
PROBLEM: 13, 20, ['D', 'y', 'n', 'A', '1611', 'k', 'I', '3431', 'M', '205', 'p', '211', '9233', '2193', 'h', '8671', 'a', '2321', 'o', '5209', 'q']

SOLUTION: 92332193h8671a2321o5209

PROBLEM: 7, 19, ['6151', 'l', 'J', 'E', '9937', 'B', '7501', '6221', 'K', '121', '7373', 'f', '2067', 'l', 'k', '3715', 'X', 'K', '7423']

SOLUTION: 75016221K1217373f2067lk3715XK7423

PROBLEM: 4, 4, ['4675', '1281', 't', '1211', '267']

SOLUTION:
1211