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: 5, 15, ['9991', '7119', 'x', '6769', 'r', 'i', 'j', 's', '6449', 'j', 'M', '245', '4129', 'B', 'T', '4827', '9543', 'd', 'l', '1125', 'J', '6057', '1241', '2027']

SOLUTION: rijs6449jM2454129BT

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, 12, ['4765', '1019', '6113', 'h', '1115', 'B', 'T', '3577', '7013', '3713', 'i', 'g', 'X', 'X', 'Q', '6879', '8289', 'E', '4449', '111', '2769', '9097', 'b', '2353', 'X', 'm', 'A']

SOLUTION:
h1115BT357770133713ig