C11112331333132311331333133313331333132312323133313231333112233311   >>    C1111233133313231133133313331333133313231232313331323133311223331   <<    C11112331333132311331333133313331333132312323133313231333112233313   >>      C11112331333132311331333133313331333132312323133313231333112233312   >>