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, 4, ['5237', 'X', '1691', '5405']

Ex Output:
X16915405


Ex Input:
7, 17, ['9105', '7319', 'J', 'Y', 'L', '495', 'x', '9123', 'K', 'i', 'W', '4619', '9285', '1107', '1385', 'm', '7909', 'C', 'o', '6953']

Ex Output:
x9123KiW4619928511071385m7909


Ex Input:
6, 13, ['p', '9637', 'a', 'i', '4153', 'M', 'r', '7339', 'j', 'g', 't', '3449', 'Z', '6917']

Ex Output:

Mr7339jgt3449Z