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:
10, 10, ['7373', 'K', 'n', '9163', '7535', 'G', '5243', 'j', 'x', 'O', '1973']

Ex Output:
O


Ex Input:
2, 3, ['G', '3677', 'c', 'f', 'v', '8669', '2971', 'N', 'e', 'C', 'x', 'C', 'm', 't', '4103', 'L', '6289']

Ex Output:
3677c


Ex Input:
2, 7, ['9737', '433', 'd', '3569', 'Z', 'f', '5303', '1905']

Ex Output:

433d3569Zf5303