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:
1, 2, ['M', 'G', '8763', '6617', 's', 't']

Ex Output:
MG


Ex Input:
1, 9, ['9565', '5327', '9547', 'X', 'P', 'U', '5735', '9075', 'K', 'n']

Ex Output:

956553279547XPU57359075K