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: 8, 9, ['2641', 'T', 'Q', '2291', '507', 'D', 'd', 'd', '9645', 'h', '3799', 'M', 'u', 'H']

SOLUTION: d9645

PROBLEM: 7, 9, ['4579', '6799', 'v', '9023', '3091', 'q', '301', 't', '7195', '2223', '8861', '5725']

SOLUTION: 301t7195

PROBLEM: 1, 2, ['U', '4341']

SOLUTION:
U4341