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, 5, ['7173', 'b', '9573', 'O', '8047', 'f']

SOLUTION: 8047

PROBLEM: 3, 4, ['9137', '2037', 'F', 'v', 'j', 'e', 'q', '9259', 't', '3417', '5783', 'Y', 'X', '2675', 'Q', 'q', '555']

SOLUTION: Fv

PROBLEM: 2, 15, ['O', '945', 'w', '6225', 'a', 'B', '2317', 'B', '3937', '9567', '8051', 'Y', '2909', 'n', 'R', 'b', 'c', '6181', 't']

SOLUTION:
945w6225aB2317B393795678051Y2909nR