⇣ bifron ⇣bif100ron00016bif500ron00081bif1000ron00162bif2000ron00323bif5000ron00809bif10000ron01617⇣ bifron ⇣bif1,00000ron162bif5,00000ron809bif10,00000ron1617bif25,00000ron4044bif50,00000ron8087bif100,00000ron16175