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, 6, ['P', 'i', 'b', 'e', '3967', 'L']

SOLUTION: Pibe3967L

PROBLEM: 1, 1, ['W', '6149', 'B', 'w', 'd', 'o', '2069', '1509']

SOLUTION: W

PROBLEM: 1, 2, ['A', 'Y']

SOLUTION:
AY

