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: 7, 8, ['2669', 'z', '3795', 'G', 'q', '8169', '6933', '3971', 'q', 'M', 'h', 'd', '2085']

SOLUTION: 69333971

PROBLEM: 12, 16, ['V', 'b', '5681', '3457', '2951', 'h', 'B', 'W', '4177', 'P', 'T', '2747', '7697', '303', '5563', '2593', 'X', 'v', '8885', 'E']

SOLUTION: 2747769730355632593

PROBLEM: 8, 8, ['2047', '3653', 'x', 'J', 'q', 'U', '5669', '1765', '5083', '449', '1987', '129', '9619', '7573', 'k', 'W']

SOLUTION:
1765