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:
5, 6, ['U', 'E', 'k', '7897', 'R', '2025', '6683', 'a', 'U', '7765', '2065', '6065', 'Q']

Ex Output:
R2025


Ex Input:
4, 8, ['G', 'f', 'x', 'd', '723', 's', 'J', '5709', 'Q', 'K', '4341', '3731', '3705', 'g', 'c', 'u', 'j', '861', '3793', '8695']

Ex Output:
d723sJ5709


Ex Input:
2, 18, ['2473', '1283', '2261', '1417', '2263', '3639', '2951', 'Z', '5451', '3127', 'C', 'V', 'u', 'X', 'K', '2995', '879', 'M', '1131', 'e', 'V', '1619']

Ex Output:

128322611417226336392951Z54513127CVuXK2995879M