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:
10, 21, ['J', '7623', '33', 'n', '4131', 'V', 'Y', 'M', 'K', '8923', '5289', 'O', 'T', '5185', 'Z', 't', '6455', '3201', 'j', '3607', '4371', '1781', '733', 'M', '6875', '7477', 't', '6741', '1801', 'f']

Ex Output:
89235289OT5185Zt64553201j36074371


Ex Input:
6, 13, ['1833', '9389', '7489', '1991', 'u', '6395', 'x', '3813', '2383', '5287', 'L', 'O', 'f', 'n', '6375', '7967']

Ex Output:

6395x381323835287LOf