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:
6, 9, ['7139', 'Z', '4407', '9791', 'F', '139', '4927', 's', '4721', 'Y']

Ex Output:
1394927s4721


Ex Input:
17, 18, ['7971', 'D', '2791', 'E', '5517', 'I', 'u', '9333', 'i', '1933', 'y', 'C', '1829', '8197', 'l', '5963', '4535', '5009', '4841', 'G', '8553', '1505']

Ex Output:
45355009


Ex Input:
4, 16, ['t', 'i', 'j', 'L', 'W', '7721', '9623', 'N', 'l', '145', 'L', '4511', '6503', '4033', 'e', 'P', 'E', '2293', '3687', 'R', '8625', 'x', 'o']

Ex Output:

LW77219623Nl145L451165034033eP