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: 1, 8, ['6345', '703', '619', 'm', '7447', '267', 'L', '4877', 'Q', 'k', '795', 'u', '9959', '8287', 'k', 'Y', '479', '5211', 'H', 'Y']

6345703619m7447267L4877