C111112111133131121133133313331323133313221131211113313113132323231   >>    C11111211113313112113313331333132313331322113121111331311313232323   <<    C111112111133131121133133313331323133313221131211113313113132323233   >>      C111112111133131121133133313331323133313221131211113313113132323232   >>