C1111233131211111211113313331333132313231323223313331311331333211232333131   >>    C111123313121111121111331333133313231323132322331333131133133321123233313   <<    C1111233131211111211113313331333132313231323223313331311331333211232333133   >>      C1111233131211111211113313331333132313231323223313331311331333211232333132   >>