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For your son's sixth birthday, you've promised to get him the cutest creature in creation: the cuddly.
你儿子的六岁生日要到了，你承诺要给他一只世界上最可爱的宠物：卡迪。
It's hard to believe that it's a cousin of the terrifying duddly or the hideous fuddly.
难以置信的是，卡迪有两个堂兄弟：面目狰狞的杜迪和丑恶的法迪。
They're all members of the Wuddly species, and the process of adopting them is deeply peculiar.
它们都是瓦迪家族成员，而领养它们的过程也别具一格。
It takes 100 eggs to make a single animal in genus Wuddly.
要融合100枚蛋才能得到一只瓦迪成员。
When 100 eggs are placed together in an incubator, they undergo egg fusion, and combine in the following way.
把100枚蛋放入孵化器后，融合开始，并以下列方式进行组合。
Blue and purple combine to make red eggs.
蓝色和紫色合成红色蛋。
Red and blue combine to make purple eggs, and red and purple combine to make blue eggs.
红色和蓝色合成紫色蛋，红色和紫色会合成蓝色蛋。
The most plentiful eggs pair up first, and if two piles are even, an egg comes from one of them at random.
数量最多的一组会先融合，如果其中两堆数量相同，会随机从中选一枚进行融合。
They keep combining until there's just one left.
不断两两相融，直至只剩一枚蛋。
If the final egg is blue, a Cuddly hatches out of it.
如果最后的蛋是蓝的，会孵出卡迪。
Purple eggs give you Duddlies, and Red eggs give you Fuddlies.
紫色的会是杜迪，红色则是法迪。
The incubator currently has 99 eggs in it. 23 are blue, 33 are purple, and 43 are red.
现在，孵化器里有99枚蛋。23枚蓝蛋、33枚紫蛋、43枚红蛋。
You can begin the process of egg fusion by adding an egg of any color to the room.
你只需再放入一个任意颜色的蛋，融合过程即可开始。
When all the eggs have combined into a single egg,
当所有的蛋融合成一个，
the creature that hatches will bond with you on sight, which is why getting a Cuddly is so important.
孵化后的动物会对你一见钟情，因此，得到卡迪就格外重要。
After all, you made a promise to your son.
毕竟，你承诺过儿子要给他卡迪。
Which color egg should you add to the incubator to get a cuddly?
那么，放哪枚蛋才能得到卡迪呢？
It's easy to get mixed up with all the cuddlies, duddlies, and fuddlies coming from different colored eggs.
不同颜色孵出卡迪、杜迪和法迪，很容易把人弄糊涂。
If we ignore how many total eggs of each color there are,
如果先忽略各自的数量，
and just look at the process of egg fusion, we might notice something that will make this problem simpler.
只看融合过程，会发现这让问题简化了。
When two eggs fuse, the number of eggs of each of those colors decreases by one, and the number of the third color increases by one.
当两枚蛋融合时，各自数量将分别减一，而第三种蛋的数量则加一，其奇偶性同时发生了改变。
That means they all change parity, or evenness and oddness, at the same time.
即同时偶变奇，奇变偶。
Right now all three piles are odd, but you get to add an egg to one color, which means that it'll be even and the other two will be odd.
目前三堆蛋都是奇数，但你要加一枚某个颜色的蛋，三堆蛋数量变成一偶、两奇。
Whichever color you choose will always be the opposite parity of the other two piles:
无论你选什么颜色，总是一种蛋是偶数，另两种蛋是奇数：
odd when they're even and even when they're odd, since every egg fusion flips each pile's parity simultaneously.
一奇两偶，或一偶两奇，因为每次融合会同时改变其奇偶性。
We want to end with 1 blue, 0 purple, and 0 red eggs, or odd, even, even.
最终我们想要：1枚蓝蛋、0枚紫蛋和红蛋，即一奇两偶。
That means we want the blue egg pile to be the opposite parity of the other two piles at the start as well.
也就是说，融合开始前，蓝蛋与其它两种奇偶性相反。
So you add a blue egg into the room, and 99 egg fusions later, only a single blue egg remains.
因此，你放入一个蓝蛋，历经99次蛋融合，最后只剩一个蓝蛋。
The Cuddly that hatches is sure to make your 6-year-old as happy as can be.
孵化出的卡迪令你六岁的儿子高兴万分。
Just be sure to follow the shopkeeper's warning, and never feed it after midnight.
但千万铭记店主的建议，午夜十二点后请勿喂食。
