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:
16, 16, ['9005', 'k', '8959', '781', 'L', 'q', '5191', 'O', '9913', 'i', '4207', '7995', 'j', '8783', 'x', 'D']

Ex Output:
D


Ex Input:
8, 17, ['i', '9145', '4765', 'q', '3437', '3855', '4741', 'U', 'B', 'D', '8041', '1763', 'T', '7339', '1425', 'V', 'H', 'M']

Ex Output:
UBD80411763T73391425VH


Ex Input:
2, 19, ['1769', 'Y', '2097', 'k', 'E', 'G', '2825', 'c', '5271', 'v', '111', 'A', 'W', 'P', '2873', '9583', '3665', '835', '1181']

Ex Output:

Y2097kEG2825c5271v111AWP2873958336658351181