C111112111133131121133133313331333132313113313331133132233313232321   >>    C11111211113313112113313331333133313231311331333113313223331323232   <<    C111112111133131121133133313331333132313113313331133132233313232323   >>      C111112111133131121133133313331333132313113313331133132233313232322   >>