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, 3, ['A', '2469', 'L']

Ex Output:
L


Ex Input:
4, 4, ['2525', 'X', '9949', 'g', 'b', 't', '305', 'I', 'E', 'n', '649', 'w', 'X', '8785']

Ex Output:
g


Ex Input:
3, 4, ['6433', '6409', '7289', '5601', '1673']

Ex Output:

72895601