instruction:
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.
question:
15, 20, ['E', 'V', '2589', 'r', '1501', '9699', 'K', 'S', '3971', 'k', '5743', '1525', 'c', 'O', 'X', 'i', '1863', '4295', 'M', '6309', '4975', '1663']
answer:
Xi18634295M6309


question:
5, 6, ['4977', 'x', '8747', 'M', '2511', 'O', '1521', 'V', 'R', 'F', 'Q', 'C', '1783', '5325']
answer:
2511O


question:
3, 19, ['6195', '8547', '3909', '2045', '583', 'C', '5559', '2001', '2415', '8759', '8159', 'J', '7097', '3051', '7349', 'z', '1005', 'B', '2683', 'h', 'd']
answer:

39092045583C55592001241587598159J709730517349z1005B2683