C11112331333132311331333133313331333132313233313331333132222331322331333131111   >>    C1111233133313231133133313331333133313231323331333133313222233132233133313111   <<    C11112331333132311331333133313331333132313233313331333132222331322331333131113   >>      C11112331333132311331333133313331333132313233313331333132222331322331333131112   >>