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 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.
Input: 12, 18, ['G', 'X', 'O', '6263', '2531', 'R', '5997', 'x', 'g', '2355', '5187', '8825', '3639', 'U', 'W', 'A', '2701', '8021', 'r', 'c', 'j', 'Z', 'S', 'D', 'z']

88253639UWA27018021