C31232233133313221211113313331333132313331333133313331333133313121111333231321   >>    C3123223313331322121111331333133313231333133313331333133313331312111133323132   <<    C31232233133313221211113313331333132313331333133313331333133313121111333231323   >>      C31232233133313221211113313331333132313331333133313331333133313121111333231322   >>