C312322331333132212111133133313331323132322331333132233132322121   >>    C31232233133313221211113313331333132313232233133313223313232212   <<    C312322331333132212111133133313331323132322331333132233132322123   >>      C312322331333132212111133133313331323132322331333132233132322122   >>