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, ['M', '7757', 'r', 'R', 'Q', '4305', 'R', 'z', 'd', '2603', '493', '2861']

rRQ4305Rzd2603