Task: Program Execution
Input (English): 17, 28, ['3671', 'U', '9103', 'a', 'c', '6021', 'r', '4977', 'R', 'E', 'T', 'b', 'J', 'v', 'S', 'e', 'l', '1749', 'n', '6551', '1731', 'F', '6883', '6983', 'X', '6551', 'z', 'Y', '9921']
Output (English): Yz1556X38963886F13711556n9471l