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, ['3877', '2107']

SOLUTION: 38772107

PROBLEM: 2, 4, ['5237', 'X', '1691', '5405']

SOLUTION: X16915405

PROBLEM: 1, 4, ['3033', '5959', 'y', 'M', 'K', '2541']

SOLUTION:
30335959yM

