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: 1, 2, ['B', 'N', 'X', '393', 'F']

SOLUTION: BN

PROBLEM: 1, 11, ['269', '3979', 'z', 'T', '5675', 'y', '8339', 's', 't', '3811', 'C', '8661']

SOLUTION: 2693979zT5675y8339st3811C

PROBLEM: 1, 2, ['Q', 'P', 'd']

SOLUTION:
QP