Task: Program Execution
Input (English): 4, 6, ['1487', 'y', '7567', '357', '7439', '9723', 'Z', '7303', '1119', 't', '7637', '6401', '5195', '5753', '7899', 's', 'r', '3675', '8909', '6723']
Output (English): 357, t, s