C11112331333132311331333133313331333132313233313331333132231211131   >>    C1111233133313231133133313331333133313231323331333133313223121113   <<    C11112331333132311331333133313331333132313233313331333132231211133   >>      C11112331333132311331333133313331333132313233313331333132231211132   >>