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: 1, 15, ['F', '6719', '7233', '4085', 'Q', 'N', '3827', '9487', 'o', '2955', '3199', '6321', 'R', '1021', 'u', 'k', '9039', 'k', 'c', '1197', '805', 'f', '5155', 'P', 'm', '6037', 'J', '6089', 'W', 'N']

SOLUTION: F671972334085QN38279487o295531996321R1021u

PROBLEM: 4, 5, ['W', 'i', 'p', 'N', '7371', '6915', 'R', 'B', 'I', 'o', '6435', 'y', '9889', '6989', '4923', '5001', '7201', 'x', 'm', 'J', '6405', '2107', '617', '6553', 's', 'z', 'z', 'r']

SOLUTION: N7371

PROBLEM: 8, 18, ['2477', '6337', '7731', 'p', '4133', 'S', '6221', '339', '5753', 'm', '1171', 's', 'T', '4175', 'Q', 'T', 'k', '1735', '9823', '533']

SOLUTION:
3395753m1171sT4175QTk1735