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, 2, ['663', '6503']

SOLUTION: 6636503

PROBLEM: 7, 7, ['3713', 'Y', 'Q', 't', 'a', '1235', 'f', '1953', 'B', '2695', 'I', '2265']

SOLUTION: f

PROBLEM: 19, 22, ['F', 'I', '2205', 'a', '8623', '7599', '1339', '2077', 'w', 'k', 'S', '9033', 'N', 'Q', 'V', 'c', 'r', '6327', '3401', 'h', '6329', '1771', 'b', '781', 'N', 'U', 'n']

SOLUTION:
3401h63291771