C12121321333132233132323323132333132333132323213232313231323132313231311   >>    C1212132133313223313232332313233313233313232321323231323132313231323131   <<    C12121321333132233132323323132333132333132323213232313231323132313231313   >>      C12121321333132233132323323132333132333132323213232313231323132313231312   >>