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, 18, ['r', 'W', '2683', '1451', 'b', '5295', '6037', 's', 'o', 'p', 'S', 'C', 'U', 'z', 'K', '6539', '4519', 'T', 'i', '4467']

Ex Output:
1451b52956037sopSCUzK65394519T


Ex Input:
2, 4, ['O', '3315', '5639', 'e', '6549', '6395', 'V', '7611', 'M', '4209', '8213', '8447', '7229', '5145', 'C', 'o', '8467', 'w', '891', 'V', 'g', 's']

Ex Output:
33155639e


Ex Input:
12, 15, ['i', '8495', '1117', '2169', '5357', 'u', '2273', '187', 'f', '2481', '6849', 's', 'x', '8521', '7183', '75', 'r', 'G', '5585', '2421', '1229', '1015', '7471', '4339', '447', '2919', 'm', 'N']

Ex Output:

sx85217183