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, 7, ['L', 'L', '1691', '2221', 'W', '5023', '3925', 'p', '8279', '2293', 'h', '9061', 'r', '2863', 'p', 'U']

Ex Output:
W50233925


Ex Input:
13, 19, ['N', 'T', '1173', '3569', '8835', '1881', 'q', '9183', 'a', 'b', 'm', 'H', 'e', '4919', '6369', '4213', '9469', '8217', '9333', '8177', 'H']

Ex Output:
e491963694213946982179333


Ex Input:
2, 4, ['w', 'H', 'n', '7629', '2943', 'N', 'v']

Ex Output:

Hn7629