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, 10, ['7373', 'K', 'n', '9163', '7535', 'G', '5243', 'j', 'x', 'O', '1973']

Ex Output:
O


Ex Input:
6, 20, ['4769', '8075', 'N', '125', '5439', 'R', '4201', 'j', 'z', 'x', '3169', 'd', '1561', '7995', 'F', 'T', 'F', 'v', 'Z', '9517', 'e', 'I', '7765', 'o', '4659', 'N', '3963']

Ex Output:
R4201jzx3169d15617995FTFvZ9517


Ex Input:
8, 14, ['T', '3029', '1667', 'G', '1119', 'W', '7061', '7551', '6537', '2611', 'y', 'Y', '6345', '6577', '1041', 'R']

Ex Output:

755165372611yY63456577