C1231321123223331211111131211113313331333133311233131131121333213221131   >>    C123132112322333121111113121111331333133313331123313113112133321322113   <<    C1231321123223331211111131211113313331333133311233131131121333213221133   >>      C1231321123223331211111131211113313331333133311233131131121333213221132   >>