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:
17, 20, ['3875', '8841', 'q', 'o', 'v', '6499', 'H', '9749', '3871', 'n', '2605', 'G', '6267', '1405', '623', '6807', 'I', 'h', '8083', '7797']

Ex Output:
Ih80837797


Ex Input:
8, 17, ['i', '9145', '4765', 'q', '3437', '3855', '4741', 'U', 'B', 'D', '8041', '1763', 'T', '7339', '1425', 'V', 'H', 'M']

Ex Output:
UBD80411763T73391425VH


Ex Input:
5, 7, ['4683', '6175', 'L', '8537', 'H', '3893', 'm', '5395', 'm', 'h', '1615', '2095', '7855', 'j']

Ex Output:

H3893m