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: 30, 30, ['365', '2643', '821', '7239', 'R', '6803', '6415', '9309', 'c', '1787', 'N', '7545', 'P', 'D', '8755', '837', 'T', '4621', '7831', '6281', 'N', 'r', 'U', '5623', '7517', '9125', 'H', 'd', '7963', '5763']

SOLUTION: 5763

PROBLEM: 10, 12, ['6999', '2223', '7751', 'b', '1379', 'e', 'v', '6749', 'k', '6697', '9', 'K', '5093']

SOLUTION: 66979K

PROBLEM: 6, 9, ['7139', 'Z', '4407', '9791', 'F', '139', '4927', 's', '4721', 'Y']

SOLUTION:
1394927s4721