⇣ bifron ⇣bif100ron00016bif500ron00081bif1000ron00162bif2000ron00323bif5000ron00808bif10000ron01616⇣ bifron ⇣bif1,00000ron162bif5,00000ron808bif10,00000ron1616bif25,00000ron4040bif50,00000ron8080bif100,00000ron16159