Task: Program Execution
Input (English): 4, 11, ['S', '6009', '6357', '8955', '7121', '1371', 'D', '7959', '9007', 'Z', 'd', 'J', 'k', 'Z', 'm', '687', '4193', '2731', '4631', 'P', 'C']
Output (English): d, Z, 9007, 7959, D, 1371, 7121, 8955