Task: Program Execution
Input (English): 9, 13, ['8505', 'K', '3475', 'v', '8893', 'H', 'R', '1791', '7029', 'Y', '4847', '4729', '7673', '3805', '9943', '4447', 't', 'x']
Output (English): 7029, Y, 4847, 4729, 7673