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: 21, 29, ['g', 's', 'M', '6171', 'o', 'y', '4695', '8217', 'V', '9745', '7491', 'X', 'q', 'E', 'p', 'u', 'k', 'K', 's', 'X', 'D', '3173', '9569', 'p', 'c', 'G', '9763', '6679', '39']

D31739569pcG9763667939