C1111233131211111211113313331323133313231323223313331311211312233121   >>    C111123313121111121111331333132313331323132322331333131121131223312   <<    C1111233131211111211113313331323133313231323223313331311211312233123   >>      C1111233131211111211113313331323133313231323223313331311211312233122   >>