C31232233133313221211113313331333132313331322121111331311223131121   >>    C3123223313331322121111331333133313231333132212111133131122313112   <<    C31232233133313221211113313331333132313331322121111331311223131123   >>      C31232233133313221211113313331333132313331322121111331311223131122   >>