⇣ irrrub ⇣irr100rub00021irr500rub00105irr1000rub00210irr2000rub00420irr5000rub01050irr10000rub021⇣ irrrub ⇣irr1,00000rub210irr5,00000rub1050irr10,00000rub2100irr25,00000rub5249irr50,00000rub10498irr100,00000rub20996