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:
11, 21, ['8339', 'U', 'p', '9819', '943', 't', 'U', '825', 'p', '3099', 'k', '5813', '1005', '4977', 'y', '8777', '1159', 'x', '9653', '5159', 'S', 'X', '7493', '1045', 'I', 'n']

Ex Output:
k581310054977y87771159x96535159S


Ex Input:
8, 19, ['K', 'X', '7907', 'q', '9587', '3037', '6277', 'D', 'H', '6185', '6775', '2505', '5841', 'z', 'u', '2285', '9575', '8269', 'm', 'z', '513', '6769', '1037', 'j', '2193']

Ex Output:
DH6185677525055841zu228595758269m


Ex Input:
12, 12, ['3827', 'S', '1345', '4967', 'K', 'W', 'J', '5051', '8981', 'W', 'e', '1701', '1069', '3445', 'z']

Ex Output:

1701