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, 4, ['i', '2353', 'A', 'm', 'K', '3203', '287', 'm', '5713']

Ex Output:
2353Am


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:
1, 15, ['5519', '2889', '5261', '8107', 'm', 'N', '8037', '3257', 'W', '8065', 'G', '2357', 'P', 't', 'B', 'L', '2781']

Ex Output:

5519288952618107mN80373257W8065G2357PtB