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: 6, 20, ['4769', '8075', 'N', '125', '5439', 'R', '4201', 'j', 'z', 'x', '3169', 'd', '1561', '7995', 'F', 'T', 'F', 'v', 'Z', '9517', 'e', 'I', '7765', 'o', '4659', 'N', '3963']

SOLUTION: R4201jzx3169d15617995FTFvZ9517

PROBLEM: 8, 8, ['137', 'b', '7765', 'l', 'E', '6783', '4243', '715', 'm', 'R', '4375', '8647', 'c', 'l', '5443', '2711', 'x', 'J', '3455', 'x']

SOLUTION: 715

PROBLEM: 1, 2, ['U', '8499', 'u', '6873', '745', 'c', 'y', 'A', 'P']

SOLUTION:
U8499