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: 2, 18, ['t', 'R', 'x', 'c', '4413', 'X', 't', 'I', '6461', 'o', '7313', '1375', '4567', '1967', '4495', '3873', 'L', '647', 'R', 'l', '1947', 'u', '5637', '9777']

Rxc4413XtI6461o731313754567196744953873L647