Task: Program Execution
Input (English): 5, 8, ['6935', 'Z', 'S', '8753', '6469', '601', 'k', '8957', '7039', 'V', '329', 'e', 'Z', '1953', '4507', '653', '6891', '1237', 'b', '1851', '2731', 'W', 'J', 'E', 'U']
Output (English): 6469, Z, 2731