C131312213233313231313231323232132313231313232233132333132313232321333131   >>    C13131221323331323131323132323213231323131323223313233313231323232133313   <<    C131312213233313231313231323232132313231313232233132333132313232321333133   >>      C131312213233313231313231323232132313231313232233132333132313232321333132   >>