Positive solution: 44 I thought for a long time and the answer was 94. Then I thought it was still 44. The reasons are as follows: First, the neighborhood received counterfeit money from 50 yuan, which was later returned to the neighborhood by Xiaomi Cloth Children's Shoes Store in 50 yuan, indicating that the neighborhood did not lose money in this case. Secondly, the young man bought 2 1 yuan shoes from 50 yuan, and Xiaomi Bu Children's Shoes Store found 29 yuan. That is to say, Xiaomi Bu Children's Shoes Store has lost money to 29 yuan now, because the young man said counterfeit money, so his shoes were taken for nothing. According to the cost price, Xiaomi Bu children's shoes store lost 15 yuan, so 15+29=44, Xiaomi Bu. Misunderstanding: In the case of the above positive solution, everyone thinks that Xiaomi Bu children's shoes store should throw 50 yuan to the neighborhood as 15+29+50=94 yuan, but think about it carefully. Before, Xiaomi Bu children's shoes store exchanged fake money for real money between neighbors, and exchanged real money for fake money, so there was no advantage between neighbors. How can you say that Xiaomi Cloth Children's Shoes Store lost this 50 yuan?