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: 1, 2, ['U', '1863', '5105', '9585', 'T', '9199', '9839', '8833', 'P', '1275', 'I', '7345', 'o', '6095', '1563', '1795', 'b', 'P']

U1863