According to JVIS USA (October 17, 2022), it takes about 30 hours to assemble a vehicle in a modern car factory. Suppose Region M uses modern factories, where it takes 30 labor hours to make one high-quality car and 20 labor hours to make one low-quality car. Region O uses older factories, where it takes 60 labor hours to make one high-quality car and 30 labor hours to make one low-quality car. Which region has an absolute advantage in producing high-quality cars?