C31232233133313221211113313331333132313331333133313331211113313331323132313111   >>    C3123223313331322121111331333133313231333133313331333121111331333132313231311   <<    C31232233133313221211113313331333132313331333133313331211113313331323132313113   >>      C31232233133313221211113313331333132313331333133313331211113313331323132313112   >>