Task: Program Execution
Input (English): y, 2627, 535, A, J, 9997, C, 4555, 5471, x, X, 4663, 3875, 7093, 4679, 9321
Output (English): 2627, 535, 9997, 4555, 5471, 4663, 3875, 7093, 4679, 9321