C111112111133131121133133313331333133313331323133313331333133313331333222321321   >>    C11111211113313112113313331333133313331333132313331333133313331333133322232132   <<    C111112111133131121133133313331333133313331323133313331333133313331333222321323   >>      C111112111133131121133133313331333133313331323133313331333133313331333222321322   >>