Task: Program Execution
Input (English): 1, 8, ['1423', '5641', 'a', 'N', '9101', 'v', '4841', 'A', '9607', '5597', 'P', '2195', '1891', '8413', 'Z', '8393', '1357', '9907']
Output (English): 1423, 9607, 1357