C31232233133313221211113313331333132313331211113313331311222331123232311   >>    C3123223313331322121111331333133313231333121111331333131122233112323231   <<    C31232233133313221211113313331333132313331211113313331311222331123232313   >>      C31232233133313221211113313331333132313331211113313331311222331123232312   >>