Task: Program Execution
Input (English): 8, 10, ['9693', 'z', 'B', 'X', '3913', 'u', 'H', '513', 'M', 'N', '1307', 'm', 'Y', '7841', 'D', 'c', '8123', 'v', '1527', 'f', 'Q']
Output (English): 513MN