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:
2, 6, ['369', 'y', 'J', 'B', '7041', '2117', '1881', 'w', 'N']

Ex Output:
yJB70412117


Ex Input:
8, 23, ['5435', 'U', 'u', 'D', '2923', '1773', '977', 'r', '4341', 'v', '3685', 'i', '3605', '6297', 'x', '4065', '6503', 'c', '6943', 'r', 'e', '193', '2413']

Ex Output:
r4341v3685i36056297x40656503c6943re1932413


Ex Input:
15, 16, ['U', '4203', '8585', 'r', '2199', '6425', '2465', '8481', '3065', 'v', 'I', '8275', '4051', 'R', 'p', 'K', 'Q', 'N', '7227']

Ex Output:

pK