As a game with ups and downs, players need to control their characters to fight against different enemies. Some players have encountered the problem in the game that there are 4 candles in Brain Hole 2020 and 3 have been blown out. How many candles are left? This problem is actually easier to solve. In order to allow everyone to solve the problem smoothly and improve their combat effectiveness, The editor of Sourcecode.com has compiled a detailed guide here.
Question: There are 4 candles and 3 have been blown out. How many candles are left?
Answer: 4.
