C31232233133313221211113313331333132313232233133313233313111133132322321   >>    C3123223313331322121111331333133313231323223313331323331311113313232232   <<    C31232233133313221211113313331333132313232233133313233313111133132322323   >>      C31232233133313221211113313331333132313232233133313233313111133132322322   >>