C312322331333132212111133133313331333131133113313331333131211111233132313231321   >>    C31232233133313221211113313331333133313113311331333133313121111123313231323132   <<    C312322331333132212111133133313331333131133113313331333131211111233132313231323   >>      C312322331333132212111133133313331333131133113313331333131211111233132313231322   >>