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:
3, 10, ['f', '2411', 'a', '8195', 'p', '6939', 'S', 'S', 'U', 'n', '3095', '8453', '4115', '6413', '8865']

Ex Output:
a8195p6939SSUn


Ex Input:
1, 2, ['663', '6503']

Ex Output:
6636503


Ex Input:
2, 4, ['5685', 'z', '6237', 'M']

Ex Output:

z6237M