⇣ irrrub ⇣irr100rub00021irr500rub00106irr1000rub00213irr2000rub00426irr5000rub01065irr10000rub02130⇣ irrrub ⇣irr1,00000rub213irr5,00000rub1065irr10,00000rub2130irr25,00000rub5324irr50,00000rub10648irr100,00000rub21297