C312322331333132212111133133313331333133312121111113313133313231323132232122321   >>    C31232233133313221211113313331333133313331212111111331313331323132313223212232   <<    C312322331333132212111133133313331333133312121111113313133313231323132232122323   >>      C312322331333132212111133133313331333133312121111113313133313231323132232122322   >>