Definition: 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.
Input: 1, 10, ['3129', 'J', 'X', 'j', 'u', 'X', 'z', '375', '8607', '6031', 'G', '7355', '5309', 'k', '4605', '6785', '87', '3675']

60318607375zXujXJ3129