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: 10, 11, ['7999', 'F', '7363', 'E', 'j', '825', 'i', 's', '5691', '1837', '6625']

SOLUTION: 18376625

PROBLEM: 11, 14, ['3803', '371', '3451', '8133', 'A', 'W', '1751', 'v', '619', '2241', '7221', 'B', 'L', '8105', '8555', '623', '4589', '2401', '9335', 'Y']

SOLUTION: 7221BL8105

PROBLEM: 3, 11, ['5721', '1643', '6551', '7749', 'a', '7569', 'g', '847', '6151', 'a', 'B', '7515', 'u', '375', 'j', '6149', 'X', 'b', '4497']

SOLUTION:
65517749a7569g8476151aB