C31232233133313221211113313331333132313331211113313331312333231   >>    C3123223313331322121111331333133313231333121111331333131233323   <<    C31232233133313221211113313331333132313331211113313331312333233   >>      C31232233133313221211113313331333132313331211113313331312333232   >>