C111123313121111121111331333132313331323133313332322133313231323311211   >>    C11112331312111112111133133313231333132313331333232213331323132331121   <<    C111123313121111121111331333132313331323133313332322133313231323311213   >>      C111123313121111121111331333132313331323133313332322133313231323311212   >>