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: 1, 2, ['k', '9837']

SOLUTION: k9837

PROBLEM: 11, 20, ['4081', '915', 'e', '765', '4125', '9603', '1557', 'C', 'L', 'k', 'd', 'h', '5317', 'J', '8587', 'm', 'B', '273', 'K', 'b', '951', '2385', 'v']

SOLUTION: dh5317J8587mB273Kb

PROBLEM: 11, 16, ['r', '9783', 'o', 'K', '2385', '7191', 'Q', 'h', '8895', '9265', '9807', 'x', '8619', 'X', '1477', 'E', 'O', '8449', 'x', 'G', '4609', 'K', '7841', '6389', 'E', 'N', '4543', '479']

SOLUTION:
9807x8619X1477E