20, model-1, 20, model-2, 20, model-3, 20, model-4, 21, model-1, 21, model-2, 21, model-3, 21, model-4, 22, model-4, 22, model-1, 23, model-1, 24, model-3, 26, model-3, 23, model-4, 25, model-3, 25, model-2, 26, model-4, 24, model-2, 27, model-1, 27, model-2, 27, model-3, 28, model-1, 28, model-2, 26, model-1, 26, model-2, 27, model-4, 29, model-1, 28, model-4, 29, model-2, 29, model-3, 29, model-4,