C11112331333132311331333133313331333132313233313331331123231331121   >>    C1111233133313231133133313331333133313231323331333133112323133112   <<    C11112331333132311331333133313331333132313233313331331123231331123   >>      C11112331333132311331333133313331333132313233313331331123231331122   >>