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, 9, ['723', 'R', '3865', '2281', '1503', 'E', 'Z', '3835', '9383', '9623']

SOLUTION: 9383

PROBLEM: 3, 10, ['3711', 'B', 'i', 'R', '7017', '147', '883', 'O', '8643', '5263', '5225', '2811', 'B', 'M', 'Q', 'W', 'F', 'i', 'L', 'l', '9401', '6669', 'u', 'A']

SOLUTION: iR7017147883O86435263

PROBLEM: 2, 2, ['7885', 'u']

SOLUTION:
u