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: 7, 19, ['6151', 'l', 'J', 'E', '9937', 'B', '7501', '6221', 'K', '121', '7373', 'f', '2067', 'l', 'k', '3715', 'X', 'K', '7423']

SOLUTION: 75016221K1217373f2067lk3715XK7423

PROBLEM: 2, 4, ['m', 'A', '7485', 'O', 'P', 'P', 'G', 'z']

SOLUTION: A7485O

PROBLEM: 3, 6, ['J', '9865', 'k', 'l', 'L', 'q']

SOLUTION:
klLq