How do you play bullfighting?

1, when the beginning of each round of cards, each person is dealt five cards, five cards if three of them add up to a multiple of 10 is a bull, a bull is bigger than no bull.

2. If you have a cow, you have to compare it to the one who has a bigger cow, and use the remaining two cards to calculate how much the remaining two cards add up to, and if they add up to more than 10, then take the single-digit part.

3, no cattle, if the hand of the cards no matter how to count, which three cards can not be added for a multiple of 10, the hand of no cattle, if the other side is also no cattle, this time we have to take the two sides of the largest cards to compare, who's card who won, if the two sides of the largest is the same words, then than the second largest card.