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, 12, ['m', 'v', '3139', '653', '9019', 'u', 'Y', 'a', 'e', '2067', '767', '5151']

Ex Output:
ae20677675151


Ex Input:
9, 12, ['4323', '4029', '2223', 'l', 'n', 'T', 'M', 'Q', '4017', '1139', 'E', '201']

Ex Output:
40171139E201


Ex Input:
6, 13, ['1293', '3381', '7395', '3533', '1569', '2397', '2335', 'f', 'Q', 'B', 'E', '1027', '3167']

Ex Output:

23972335fQBE10273167