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: 3, 14, ['f', '2105', '8129', '6957', 'T', 'g', '7157', 'M', '9351', 'n', 'A', 'C', '5489', '4803', 'f', '7527', 'S', '8679', 'a', 'l', '5113']

81296957Tg7157M9351nAC54894803