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, 2, ['B', 'N', 'X', '393', 'F']

SOLUTION: BN

PROBLEM: 2, 6, ['9531', 'T', '6105', 'H', '9163', 'o', 'K', '3091', '6167', '7505', '3121', '6607', 'H']

SOLUTION: T6105H9163o

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

SOLUTION:
kw5781IV3351Hxbn