So this is the only zygote, the only square that contains all upper case six letters. And so we place a six. Now, by the way, there are a total of 64 cases because eight multiplied by eight gives us 64. Now, if we continue the process and count up all the zygotes, all the possibilities where five letters are uppercase letters, we're going to get 123456. So we see that six out of 64 possibilities will produce an offspring that has five uppercase letters and we continue the process. Let's continue with three.