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:
1, 5, ['6055', '1571', 'y', '8959', 'L', 'z', '353', '2365', '8291', 'C', 'U', '8249']

Ex Output:
60551571y8959L


Ex Input:
1, 8, ['617', '527', '943', '897', '817', '5645', '5961', 'D', 'y']

Ex Output:

61752794389781756455961D


