C111112111133131121133133313331323133313221131211113313113313331333232133322321   >>    C11111211113313112113313331333132313331322113121111331311331333133323213332232   <<    C111112111133131121133133313331323133313221131211113313113313331333232133322323   >>      C111112111133131121133133313331323133313221131211113313113313331333232133322322   >>