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, 11, ['Q', 'z', 'E', '4501', 'G', '4227', 'k', 'Y', '291', 'T', '1347', '6989', 'J', 'T', '7713', 't', '9903', '4703', '7389', '5391', '5111', 'Q', 'k']

SOLUTION: QzE4501G4227kY291T1347

PROBLEM: 2, 9, ['K', 'B', 't', '8137', '7741', '169', '7603', 'A', '3315', 'E', 'T', 'S', '7873', 'L']

SOLUTION: Bt813777411697603A3315

PROBLEM: 4, 5, ['7371', '8375', '9959', 'o', '3453', '5733', 'L', 'Y', '1107', '4601', '8163', 'W']

SOLUTION:
o3453

