C11112331333132311331333133313331333132311213331333131133123311   >>    C1111233133313231133133313331333133313231121333133313113312331   <<    C11112331333132311331333133313331333132311213331333131133123313   >>      C11112331333132311331333133313331333132311213331333131133123312   >>