1. First of all, if you find Charles, you can choose to challenge or develop the formula. It is suggested that all formulas should be worked out before typing. Customers will ask travelers to add more according to the formula (just one more cup is enough), and pay attention to large, medium and small cups. Everyone who completes it can get 100 points, and only five are enough to get rewards.

2. Full version of coffee area formula: library: coffee *3, starry night: coffee * 1+ milk *2, golden Eden: coffee *2+ milk * 1, moonlight alley: coffee * 1+ afternoon milk * 1+ cocoa sauce.