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: 11, 11, ['8463', '9147', 'A', '8063', '8771', '955', 'c', '1821', '9631', 'U', '7979']

SOLUTION: 7979

PROBLEM: 12, 19, ['p', '8105', 'c', '8759', '813', 'L', '1451', 'E', 'M', 'N', 'n', '633', '2401', 'p', 'B', 'H', 'G', '2577', 'F', '1045', '8929', '9383']

SOLUTION: 6332401pBHG2577F

PROBLEM: 7, 8, ['9271', 'd', 'T', 'q', 'q', 'a', 'a', 'W', 'U']

SOLUTION:
aW