⇣ irrrub ⇣irr100rub00021irr500rub00106irr1000rub00212irr2000rub00425irr5000rub01062irr10000rub02124⇣ irrrub ⇣irr1,00000rub212irr5,00000rub1062irr10,00000rub2124irr25,00000rub5311irr50,00000rub10622irr100,00000rub21244