C31232233133313221211113313331333132313331333133313331333133313133313113231   >>    C3123223313331322121111331333133313231333133313331333133313331313331311323   <<    C31232233133313221211113313331333132313331333133313331333133313133313113233   >>      C31232233133313221211113313331333132313331333133313331333133313133313113232   >>