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:
19, 23, ['7749', 'H', 'y', '7905', '8567', '3819', '2839', '9145', '4915', 'M', 'U', '7891', '5601', '7109', 'x', 'z', '295', '8709', 'G', 'L', '1297', 'W', '6037', '2479', 'F', '5493', 'Q']

Ex Output:
GL1297W6037


Ex Input:
9, 9, ['3149', '8605', '3995', 'R', '4511', 'W', '9457', 'P', '8439', '1467', 'Y', '7429', 'D', 'R', '4749', '3351', '2555', 'Q', 'F', 'u', '6815', 'B', '4005', '8113', 'A']

Ex Output:
8439


Ex Input:
9, 11, ['y', '2681', 'd', '3003', 'M', '4135', 'Z', 'd', 'M', 'k', 'z', 'd']

Ex Output:

Mkz