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:
10, 12, ['1821', '663', 'w', '6961', 'R', 'e', '1137', '2003', '5241', 'p', 'T', 'r']

Ex Output:
pTr


Ex Input:
7, 8, ['1469', '2079', '643', 'i', '6567', 'B', '7849', '4007', 'x', '2863', 'N', '1279', '1271', 'p']

Ex Output:
78494007


Ex Input:
11, 17, ['5215', '9311', '6959', '6887', '7423', '343', '5651', 'm', 'i', 'b', 'y', 'w', 'x', 'F', '4087', 'P', '6177', '949', 'k', '5237', '6909', '751', 'K', '141', '5991']

Ex Output:

ywxF4087P6177


