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:
3, 18, ['4841', 'U', 'o', 't', 'C', 'c', 'g', 'S', '161', '9667', 'F', '6543', 'k', '4089', '8819', '9053', '6489', '2647', 'U', 'g', 'r', '5321', 'S', '4961', 'Z', '6445', '859', 'c', '6965', 'l']

Ex Output:
otCcgS1619667F6543k40898819905364892647


Ex Input:
8, 8, ['137', 'b', '7765', 'l', 'E', '6783', '4243', '715', 'm', 'R', '4375', '8647', 'c', 'l', '5443', '2711', 'x', 'J', '3455', 'x']

Ex Output:
715


Ex Input:
16, 22, ['U', '8045', 'y', 'I', '4971', '8109', '3563', 'f', 'm', '6235', '8539', '9191', '2001', 'Z', '1733', 'Q', '4145', 'u', '4021', '3819', '6465', '7227']

Ex Output:

Q4145u4021381964657227