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: 8, 14, ['779', 'v', 'P', '2351', '2933', '2293', '6029', '8769', '2713', '8475', '4303', '8285', '7961', '4421', '4191', 'j', 's', 'M']

8769271384754303828579614421