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, 12, ['2911', 'i', '1137', '3241', '3311', '4497', '4243', '5871', 'z', '3415', '8987', 'e', 's']

Ex Output:
34158987e


Ex Input:
5, 5, ['m', '6561', '8687', '4209', 'x', 'u', 'D', '3673', '6175', '5195', 'n', '71', 'h', 'U', '1899', '4559', '2419', 't', 'a', '4165']

Ex Output:
x


Ex Input:
2, 3, ['r', 'g', '5681']

Ex Output:

g5681


