⇣ bifron ⇣bif100ron00016bif500ron00080bif1000ron00160bif2000ron00320bif5000ron00799bif10000ron01599⇣ bifron ⇣bif1,00000ron160bif5,00000ron799bif10,00000ron1599bif25,00000ron3997bif50,00000ron7994bif100,00000ron15988