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: 1, 15, ['6847', 'm', '1061', '891', '4425', 'o', 'D', '2129', '493', 'D', 't', '9223', 'C', '2799', '9831', '8379', '419', 'K', '3369', '1053']

6847m10618914425oD2129493Dt9223C27999831