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:
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:
10, 11, ['v', 'c', 'q', 'V', '1151', '1083', 'A', '6689', 'e', '4821', 'S', 'e', 'I', '7445']

Ex Output:
4821S


Ex Input:
1, 3, ['X', 'Z', 'U', '9519', 'y']

Ex Output:

XZU