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: 5, 7, ['L', 'L', '1691', '2221', 'W', '5023', '3925', 'p', '8279', '2293', 'h', '9061', 'r', '2863', 'p', 'U']

SOLUTION: W50233925

PROBLEM: 13, 15, ['e', '7179', 'W', 'k', '9187', 'l', 'w', '4171', '4091', 'C', '8441', 'P', 'b', '6177', '9279', 'L']

SOLUTION: b61779279

PROBLEM: 8, 14, ['J', 'U', 'L', 'X', 'W', 'G', '7467', '8235', 'g', 'b', '4353', '7669', 'I', '2541', 'P', 'B', 'a', '9415', 'E', '5473', 'A']

SOLUTION:
8235gb43537669I2541