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: 12, 15, ['8959', '9391', 'C', '1779', '6677', 'w', '6941', 'Q', 'P', 'Z', 'N', '4123', '7283', '6931', '2893']

4123728369312893