C31232233133313221211113313331333132313331322121111332313331311213123121   >>    C3123223313331322121111331333133313231333132212111133231333131121312312   <<    C31232233133313221211113313331333132313331322121111332313331311213123123   >>      C31232233133313221211113313331333132313331322121111332313331311213123122   >>