C31232233133313221211113313331333133313331212111111331313331323132313121   >>    C3123223313331322121111331333133313331333121211111133131333132313231312   <<    C31232233133313221211113313331333133313331212111111331313331323132313123   >>      C31232233133313221211113313331333133313331212111111331313331323132313122   >>