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.

Example Input: 7, 8, ['C', 'W', '7259', 'e', 'O', '6851', '6971', 'q', 'r', 'G', '8919', '3871', '141', 'u', 'R']
Example Output: 6971q

Example Input: 6, 14, ['i', 'b', 'Q', '8123', 'O', '2561', '2109', '1331', '4609', 'g', 'g', '1971', 'D', 'i']
Example Output: 2561210913314609gg1971Di

Example Input: 7, 21, ['I', 'A', 'S', 'Z', '7961', 'W', 't', 'R', '3267', 'k', '7431', '5029', '717', '2923', 'Z', '845', 'R', 'L', 'g', '9365', 'o']
Example Output:
tR3267k743150297172923Z845RLg9365o