C111112111133131121133133313331333132313232233132313331323133311211323213231211   >>    C11111211113313112113313331333133313231323223313231333132313331121132321323121   <<    C111112111133131121133133313331333132313232233132313331323133311211323213231213   >>      C111112111133131121133133313331333132313232233132313331323133311211323213231212   >>