C312322331333132212111133133313331323132322331333131232313231321   >>    C31232233133313221211113313331333132313232233133313123231323132   <<    C312322331333132212111133133313331323132322331333131232313231323   >>      C312322331333132212111133133313331323132322331333131232313231322   >>