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, 18, ['R', 't', 'w', 'Y', '4361', '8313', 'E', '5061', '9325', 'j', '7223', '8023', '759', '8061', '1441', 'f', 'Y', 'L']

RtwY43618313E50619325j7223802375980611441fYL