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: 3, 23, ['N', '1833', 'B', '5201', '7027', 'U', '581', 'y', '4939', '9907', 'w', 'o', 's', 'h', '9693', 'a', 'i', '8993', 'f', '1619', '6257', '6279', 'W', '3037', 'E']

SOLUTION: B52017027U581y49399907wosh9693ai8993f161962576279W

PROBLEM: 12, 12, ['O', 'y', 'c', 'E', 'g', 'o', '6539', 'r', '8917', '2839', '109', '6143', '3091', 'e', 'S', 'L', 'C', '4359']

SOLUTION: 6143

PROBLEM: 1, 5, ['Q', 'J', '983', 'W', 'b']

SOLUTION:
QJ983Wb