C1313122132333132313132313232321323132313132322331323331323223313123231323121   >>    C131312213233313231313231323232132313231313232233132333132322331312323132312   <<    C1313122132333132313132313232321323132313132322331323331323223313123231323123   >>      C1313122132333132313132313232321323132313132322331323331323223313123231323122   >>