Task: Program Execution
Input (English): 6, ['6151', 'f', '1253', '7993', '2115', 'Y', 'J', '4967', '9403', 'X', '65', 'U', 'I', '621', '5811']
Output (English): J, 4967, 9403, X, 65, U, I, 621, 5811