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: 13, 20, ['9355', 's', 'j', 'r', '7489', '7795', 'i', 'l', 'T', 'e', 'Z', 'W', 'T', '9257', '6125', 'Y', '1549', 'H', 'L', '7783', 'b', 'b', 'N', '421']

T92576125Y1549HL7783