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:
13, 14, ['r', '2521', '8819', '2173', 'U', 'I', 'G', '2499', 'c', '6667', 'K', '1187', '3605', '9115', '3905', '7135', '3173', 'F']

Ex Output:
36059115


Ex Input:
3, 5, ['951', '6733', 'g', '1119', 'U', '4025']

Ex Output:
g1119U


Ex Input:
9, 12, ['5543', 'h', 's', 'f', '1047', '4389', 'X', '67', '1265', '257', 'c', 'u']

Ex Output:

1265257cu


