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: 11, 20, ['G', '2099', 'T', '5377', 'B', '3749', '7081', 'D', 'F', '3831', '4141', '4381', '8705', '5885', 'U', '5719', 'F', '1995', '4293', 'i', 'K', 'I', '7039', 'M', 'd', '8609', '6819', 'B', 'b']

4141438187055885U5719F19954293i