Detailed Instructions: 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 find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output 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. Perform the operations in order, i.e., do not concatenate the elements and then reverse the string.
Q: 7, 20, ['6821', '8075', 'K', 'f', '8913', 'z', 'C', '4159', '6627', '3609', 's', 'w', 's', '4427', 'W', '123', 'P', '9981', 'N', 'i', '5273', 'J', '1833', '1281', 'j', '689', '795', 'G']
A:
iN9981P123W4427sws360966274159C