public Vynasob(int cislo, Operace prev) : base(prev) { this.cislo = cislo; }
public Pripocitej(int cislo, Operace prev) : base(prev) { this.cislo = cislo; }
public Operace(Operace prev) { this.prev = prev; }
public OperaceBuilder Vynasob(int v) { operace = new Vynasob(v, operace); return(this); }
public OperaceBuilder Pripocitej(int v) { operace = new Pripocitej(v, operace); return(this); }
public OperaceBuilder(Operace operace) { this.operace = operace; }