C1111233133313231133133313331333133313231232313331333132221123233311   >>    C111123313331323113313331333133313331323123231333133313222112323331   <<    C1111233133313231133133313331333133313231232313331333132221123233313   >>      C1111233133313231133133313331333133313231232313331333132221123233312   >>