Tourism in Qingyuan Mountain in math diary

Today is another sunny day. I was wandering in the street, and suddenly I saw a lot of people gathered together not far away. I ran for a year, and it turned out to be a prize-winning game. "Hum, what's fun about winning prizes?" I was bored to say that the people next to me quickly said, "It's not fun to grab the prize, but there is a heavy prize, which can attract people." I asked eagerly, "What is it!" "5 yuan money." The man said with big eyes. Hearing this, I was excited. "I have to try anything for such an attractive prize." After that, I asked the shopkeeper how to grasp the law. The shopkeeper said, "This is 24 mahjong. There are 12 fives and 12 tens written under the mahjong. You can only catch 12 mahjong at a time. If the total number of 12 mahjong targets is 6, then you can win the 5 yuan Prize." I didn't roll up my sleeves, took out 5 yuan money from my pocket and gave it to the shopkeeper.

although I can win it 1 times, I still haven't won the grand prize.

after I got home, I thought about it and felt something was wrong. I think, if you catch 6 points, you must catch all the 12 mahjong pieces with 5 marks. The best situation is that the first time you catch a 5, the second time you catch two 5' s, the third time you catch three 5' s ... The 12th time you catch 12 5' s, you have to spend at least 6 yuan money. But in case the number of mahjong targets caught is 1 or the sum of them is the same, how many times will it cost?

After some consideration, I finally figured out the problem. I hurried to the street to find the account, but I had run away without a trace.