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:
4, 6, ['s', 'o', '5677', '5881', '6197', '8349']

Ex Output:
588161978349


Ex Input:
1, 2, ['D', '5207']

Ex Output:
D5207


Ex Input:
20, 25, ['1199', '1161', '9839', 'P', 'M', 'p', '5219', '9501', 'o', '4801', '161', 'Q', '1081', 'c', 'b', '9541', 's', '4289', '6189', 'c', 'k', '1407', 'H', 'H', 'R']

Ex Output:

ck1407HHR