Task: Program Execution
Input (English): 1, 9, ['6027', 'u', 'l', '8443', 'M', '5361', '1401', '5607', '6659', '6691', 'S', 'j', 't', 'o', '4243', '1287', 'A', '943', '8891', '5709', '1873']
Output (English): 6027, 6691, 8891