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: 9, 10, ['8633', 'Q', 'h', 'r', '6939', 'U', 'F', '9823', '7707', 'a', 'C', 'o', '5621', 'V', 'S', 'f', 'u', '3607', '3883', 'U', '8939']

SOLUTION: 7707a

PROBLEM: 1, 5, ['3123', '67', '6019', '9385', '8251', 'b', 'D', '4957', 'u', '2091']

SOLUTION: 312367601993858251

PROBLEM: 8, 14, ['R', 'a', 'c', '8459', 'S', 'g', 'r', 'w', '6817', 'd', 'd', '2777', 'J', '3511', 'G', 'E', 'z', '3681', '509', '1591', 'F', '527', 'e', 'P', 'L', 'W', '9131']

SOLUTION:
w6817dd2777J3511