1, solution; Step 1, distribute three stacks of cards, left, middle and right, with no less than two cards in each stack and the same number of cards in each stack; Poker * * * has 54 cards with an average score of 54÷3= 18. There are 18 cards in each pile. Step 2: Take a card from the left pile and put it in the middle pile. The three piles are 17, 19 and 18 respectively. Step three, take one from the right pile and put it in the middle pile. The three piles are 17, 20 and 17 respectively. Step 4: There are several cards in the pile on the left. Just take some cards from the middle pile and put them in the left pile. The three piles are 17+ 17, 20- 17 and 17 respectively, and the last three piles are 34, 3 and 172 respectively. Suppose: A's original task is to produce X units, and X *1.12+y *1.1= 4000x+y = 4000-400 = 3600y = 3600-x/kloc-.