C1231321123223331211111131211113313331333133311233131131121331323221   >>    C123132112322333121111113121111331333133313331123313113112133132322   <<    C1231321123223331211111131211113313331333133311233131131121331323223   >>      C1231321123223331211111131211113313331333133311233131131121331323222   >>