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, 8, ['F', '6435', '679', 'J', '2393', 'T', '3587', 'S', '5615', 'P', 'U', 'f', 'W', 'u', 'f', '9115', 's', 'X', 'G', 't', 'W', 'q', 'g', 'I', '5537', '5063']

Ex Output:
679J2393T3587S


Ex Input:
2, 3, ['1211', 'B', '3591', '9293', '1455', 'o', 'O', 'D', 'g', 'F', 'e']

Ex Output:
B3591


Ex Input:
6, 8, ['4719', 'Y', 'e', '7571', 'R', '5053', '3263', 'l', 'n', '5109', 'Q', 'z', 'D', 'f', '55', 'k', '4807', '8187']

Ex Output:

50533263l