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, 11, ['Q', 'Y', 't', '9251', 'd', '5229', 'Q', 'l', 'O', '2935', 'E', 'x', '5641']

SOLUTION: QYt9251d5229QlO2935E

PROBLEM: 4, 10, ['C', '7103', '3123', '9575', 'y', '3583', 'm', '3311', '2453', '411', '5113', '6185', '7035', 'c', '2139', '6101', '8455', '4421']

SOLUTION: 9575y3583m33112453411

PROBLEM: 17, 19, ['v', 'g', '9391', 'e', '8697', 'd', 's', '7653', 'h', '6095', 'U', '6863', 'm', 'g', '7577', '783', '3797', 'i', 'h', '3061', 'K', 'D', 't', '3761', '2035', 'D', '8067', 'H', '2823', 'z']

SOLUTION:
3797ih