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, 10, ['951', '2207', 'i', 'U', '3043', 'R', 'O', '6841', '9299', '57', 'W', '9521', 'a', '9351']

iU3043RO6841929957