What's the cheapest way to get from Huai 'an, Jiangsu to Beijing? There is also a place to live, because we are students, so introduce some preferential ones!

Tell you a good way to buy! Not long ago, I bought a 4-day and 5-night group purchase in Beijing, which cost more than 400 yuan (including scenic spots, nearly 100 yuan). Accommodation basically costs nothing. The accommodation is good, but the train is very cheap, only about 100 yuan.