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: 5, 15, ['q', 't', '1437', 'O', '7279', '3343', '7489', 'A', 'F', 'j', 'j', '8953', '7717', 'o', 'M', 'W', 'K', 's', 'P', '5647', '4655']

727933437489AFjj89537717oM