C31232233133313221211113313331333131211113313231333231323223313231   >>    C3123223313331322121111331333133313121111331323133323132322331323   <<    C31232233133313221211113313331333131211113313231333231323223313233   >>      C31232233133313221211113313331333131211113313231333231323223313232   >>