C11112331312111112111133133313231333132313331333132233313111121   >>    C1111233131211111211113313331323133313231333133313223331311112   <<    C11112331312111112111133133313231333132313331333132233313111123   >>      C11112331312111112111133133313231333132313331333132233313111122   >>