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, 7, ['f', 'L', 'o', 'j', '9517', '5357', 'q', '2129', '1923', '4043']

SOLUTION: q

PROBLEM: 7, 8, ['6921', '3459', '5521', '6215', 'r', '8397', 'R', '8499', '6683', '6595', '8315', '965', '3055']

SOLUTION: R8499

PROBLEM: 8, 17, ['8353', '4857', 'p', '3189', 's', '4759', 'N', 'H', '7939', 'q', 'B', '5323', 'z', '3675', 'z', 'L', 'm', 'K', '9767', '7471', 'G', 'R', 'W', '4025', 'x']

SOLUTION:
H7939qB5323z3675zLm