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.

Ex Input:
2, 17, ['5049', 'L', 'l', 'b', '5473', '9143', 'd', 'l', '4337', 'e', 'G', '5631', '7089', '2629', '3987', '8197', 'c', '8111', '1897', 'b', '1519', '2185', '8841', '7507']

Ex Output:
Llb54739143dl4337eG56317089262939878197c


Ex Input:
26, 27, ['9819', 'M', 'z', '9977', 'U', '5651', 't', '453', 'D', 'o', 'l', 'T', '779', '2341', 'N', 'x', '2179', 'B', 'J', 'X', 'X', 'N', '5371', '1293', 't', 'j', '3971']

Ex Output:
j3971


Ex Input:
5, 12, ['253', 'T', '4121', '3303', 'm', 'N', '9443', '6865', 'P', 'L', '9575', 'U', 'K', '8417', 'h', 'H']

Ex Output:

mN94436865PL9575U