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:
5, 5, ['m', '6561', '8687', '4209', 'x', 'u', 'D', '3673', '6175', '5195', 'n', '71', 'h', 'U', '1899', '4559', '2419', 't', 'a', '4165']

Ex Output:
x


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:
2, 16, ['555', '8627', 'L', '6519', 'i', '7001', '8827', '9809', '4695', '9355', 'd', '61', 'o', 'Q', '6013', '7', '221', '947', 'n', 'C', '1103']

Ex Output:

8627L6519i70018827980946959355d61oQ60137