C312322331333132212111133133313331323132322331333132321123231323321   >>    C31232233133313221211113313331333132313232233133313232112323132332   <<    C312322331333132212111133133313331323132322331333132321123231323323   >>      C312322331333132212111133133313331323132322331333132321123231323322   >>