⇣ irrrub ⇣irr100rub00022irr500rub00108irr1000rub00216irr2000rub00433irr5000rub01082irr10000rub02163⇣ irrrub ⇣irr1,00000rub216irr5,00000rub1082irr10,00000rub2163irr25,00000rub5408irr50,00000rub10816irr100,00000rub21633