C11112331312111112111133131333133313231333132313232233132331123233311   >>    C1111233131211111211113313133313331323133313231323223313233112323331   <<    C11112331312111112111133131333133313231333132313232233132331123233313   >>      C11112331312111112111133131333133313231333132313232233132331123233312   >>