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:
15, 18, ['u', 'W', 'D', '607', '4111', '1207', 'N', 'T', 'Q', '7755', 'I', '9387', '6501', 't', '901', 'W', 'P', 'F', 'o', 'S', '6809', '1973', '3791', '8015', 'x', 'm', '4859', 'V', 'G']

Ex Output:
901WPF


Ex Input:
4, 7, ['h', '1133', 'n', 'Y', 'X', 'z', 'l']

Ex Output:
YXzl


Ex Input:
6, 22, ['c', 'I', 'n', 'o', '6165', '5289', '3097', 'w', 'U', 'b', '3913', 'o', 'x', '3959', '6379', 'T', 'R', '6093', '5299', 'f', '7057', '2821']

Ex Output:

52893097wUb3913ox39596379TR60935299f70572821