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, 18, ['4311', '8261', 'B', 'v', '4293', 'y', 'Z', 'Q', '3255', 'H', 'K', 'm', 'x', '7619', '789', '6197', '8757', '5751', '447']

v4293yZQ3255HKmx7619789619787575751