C312322331333132212111133133313331333133312121111331211111132131121   >>    C31232233133313221211113313331333133313331212111133121111113213112   <<    C312322331333132212111133133313331333133312121111331211111132131123   >>      C312322331333132212111133133313331333133312121111331211111132131122   >>