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: 9, 20, ['P', 'M', '4115', '4091', '5195', '2665', '2437', 'W', 'P', '7101', '8529', '6201', 'D', 'T', 'n', 'V', '2553', 'X', '8667', '9825']

P710185296201DTnV2553X86679825