C1111233131211111211113313331333132313231323223313331311211321121   >>    C111123313121111121111331333133313231323132322331333131121132112   <<    C1111233131211111211113313331333132313231323223313331311211321123   >>      C1111233131211111211113313331333132313231323223313331311211321122   >>