Stefan trades currency for R$-$Capital. Stefan has $$10,000,000$ to begin with, and he must state all profits at the end of any speculation in US dollars. The spot rate is $$1\mathrm{.}3558/,$ while the $30-$day forward is $$1\mathrm{.}3550/.$

d$.$ If Stefan believes the euro will continue to rise in value against the US dollar so that he expects the spot rate to be $$1\mathrm{.}3600/$ at the end of $30$ days, what should he do$?$ Calculate his profit $($if any$).$

b$.$ If Stefan believes the euro will depreciate against the US dollar so that he expects the spot rate to be $$1\mathrm{.}2800/$ at the end of $30$ days, what should he do$?$ Calculate his profit $($if any$).$