C31232233133313221211113313331333132313331322121111332212111133112133313112121   >>    C3123223313331322121111331333133313231333132212111133221211113311213331311212   <<    C31232233133313221211113313331333132313331322121111332212111133112133313112123   >>      C31232233133313221211113313331333132313331322121111332212111133112133313112122   >>