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: 6, 15, ['2129', 'm', 'W', '4213', '7813', 'k', 'w', '5781', 'I', 'V', '3351', 'H', 'x', 'b', 'n', 't', 'F', 'z', '9747']

SOLUTION: kw5781IV3351Hxbn

PROBLEM: 3, 8, ['F', '6435', '679', 'J', '2393', 'T', '3587', 'S', '5615', 'P', 'U', 'f', 'W', 'u', 'f', '9115', 's', 'X', 'G', 't', 'W', 'q', 'g', 'I', '5537', '5063']

SOLUTION: 679J2393T3587S

PROBLEM: 16, 23, ['q', 'R', '9721', 'I', '5427', '6403', 'b', '2311', '3669', '6839', '7465', 's', '8843', 'H', 'r', '8293', '2209', '5339', 'Q', 'y', '879', '2327', 'T', 'A', '9429', 'Y', 'H']

SOLUTION:
829322095339Qy8792327T