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: 7, 14, ['5139', 'O', '6475', 'o', 'e', 'w', 'H', 'h', 'U', 'f', '6153', 'o', '937', '1315', '4769']

HhUf6153o9371315