C1111133313331323223313331333133313331321123113313231323132322233311   >>    C111113331333132322331333133313331333132112311331323132313232223331   <<    C1111133313331323223313331333133313331321123113313231323132322233313   >>      C1111133313331323223313331333133313331321123113313231323132322233312   >>