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, 12, ['o', '7779', '4601', '6617', '3125', 'E', '525', 'R', '3047', 'U', '3235', '6643', 'q', '7325']

66173125E525R3047U32356643