1. At the beginning of each round, everyone will be dealt five cards. If three of the five cards add up to a multiple of 10, it is considered that there are cows, and cows are greater than none.

2. If they are all cows, they are bigger than their cows. According to the remaining two cards. What is the sum of the remaining two cards is the number of cows. If the sum is greater than 10, take the single-digit part.

3. In the case of no cow, if the sum of the three cards can't be a multiple of 10 no matter how you calculate the cards in your hand, then there is no cow in this hand. If the opponent has no cows, it is necessary to compare the biggest cards of both sides at this time, and whoever has the biggest card will win. If both sides are the same, it will be better than the second largest card.

Look at the size

If there are cows on both sides of the first set, compare the second set. Add the remaining two cards. If it is an integer of ten, the multiple is the largest, and then according to nine to one, the multiple gradually decreases.

If it is greater than 10 and less than 20, then according to the multiple calculation, each group of numbers has its own unique address, and the size of each address is different. In comparison, the party with the largest card wins. If the cards are the same, compare them according to their colors.