C11112331333132311331333133313331333132313233313331333131231323331323213111   >>    C1111233133313231133133313331333133313231323331333133313123132333132321311   <<    C11112331333132311331333133313331333132313233313331333131231323331323213113   >>      C11112331333132311331333133313331333132313233313331333131231323331323213112   >>