main()
{
int?p=0,w=0,s=0,f=0;
if(s<250)
{
f=p*w*Δs*(1-d);
printf("%d",f);
}
if(s>=250&&s<1500)
{
f=(p*w*Δs*(1-d))*0.02;
printf("%d",f);
}
if(s>=1500&&s<3000)
{
f=((p*w*Δs*(1-d))*0.02)*0.1;
printf("%d",f);
}
if(s>=3000)
{
f=(((p*w*Δs*(1-d))*0.02)*0.1)*0.15;
printf("%d",f);
}