C1961 The Comrades.

"What should we do next? The stone tablet has already announced the coordinates of all the keys. I have a rough look at it. There are a total of 108 keys, and they were obtained by a total of 67 different groups. Other than us, there are 39 other groups with two keys, and 27 other groups with one key. Including us, there are a total of 67 different forces. Therefore, there are at least 1