C1111233133313231133133313331333133313231121333133313331322331123233311   >>    C111123313331323113313331333133313331323112133313331333132233112323331   <<    C1111233133313231133133313331333133313231121333133313331322331123233313   >>      C1111233133313231133133313331333133313231121333133313331322331123233312   >>