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: 15, 18, ['9781', '4365', '6517', 'u', 's', '9177', '8749', 'V', 'w', 'M', '5559', '5421', 'R', 'N', 'I', '5705', 'w', '5821']

SOLUTION: I5705w5821

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: 8, 27, ['F', '4595', 'n', 'd', '8913', 'y', '6979', 'P', 'Z', '9633', 'P', '753', 'f', '8415', 'U', '423', '8657', '6891', 'y', '719', 'U', '1105', '5725', 'L', 'C', '5723', '1653', '5537', 'j']

SOLUTION:
PZ9633P753f8415U42386576891y719U11055725LC57231653