C131312213233313231313231323232132313231313232233132333132313233213131   >>    C13131221323331323131323132323213231323131323223313233313231323321313   <<    C131312213233313231313231323232132313231313232233132333132313233213133   >>      C131312213233313231313231323232132313231313232233132333132313233213132   >>