C1313122132333132313132313232321323132313132322331323331323231211   >>    C131312213233313231313231323232132313231313232233132333132323121   <<    C1313122132333132313132313232321323132313132322331323331323231213   >>      C1313122132333132313132313232321323132313132322331323331323231212   >>