Nura want buy k gadget she s burle she buy gadget dollar pound so gadget selling type currency the type currency cost currency changingNura buy gadget n day for day know exchange rate dollar pound know cost conversion burle dollar poundseach day 1 n Nura buy gadget current exchange rate each day buy gadget want gadget buy n dayshelp Nura find minimum day index k gadgets Nura pay burle convert accord exchange rate purchase day Nura can not buy dollar pound store burle Gadgets number integer 1 m order appear input