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: 4, 10, ['7991', '7969', '8383', '1935', 'U', 'Y', '6063', 'f', '985', '1303', '6245', 'c', 'j', 'P', 's']

1935UY6063f9851303