C1111233131211111211113313331323133313231323223313331311331312132313233311   >>    C111123313121111121111331333132313331323132322331333131133131213231323331   <<    C1111233131211111211113313331323133313231323223313331311331312132313233313   >>      C1111233131211111211113313331323133313231323223313331311331312132313233312   >>