C312322331333132212111133133313331323132322331333131121131211212121   >>    C31232233133313221211113313331333132313232233133313112113121121212   <<    C312322331333132212111133133313331323132322331333131121131211212123   >>      C312322331333132212111133133313331323132322331333131121131211212122   >>