C312322331333132212111133133313331333131122233132313331323231231   >>    C31232233133313221211113313331333133313112223313231333132323123   <<    C312322331333132212111133133313331333131122233132313331323231233   >>      C312322331333132212111133133313331333131122233132313331323231232   >>