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: 17, 18, ['7971', 'D', '2791', 'E', '5517', 'I', 'u', '9333', 'i', '1933', 'y', 'C', '1829', '8197', 'l', '5963', '4535', '5009', '4841', 'G', '8553', '1505']

SOLUTION: 45355009

PROBLEM: 1, 1, ['Z', '5825', '8499', 'E', 'A', '4575', '9783', '1021', '5067', '9359', 'Q', '1489', '4793', 'g', '2967']

SOLUTION: Z

PROBLEM: 12, 15, ['4707', '1701', '8139', 'a', 'm', '5171', '2745', 'S', 'E', 'E', 'q', '997', '6949', '703', '5909', '2113']

SOLUTION:
99769497035909