#include<conio.h>
#include<stdio.h>
int main()
{
int t;
float s;
if(s<=0,8)
{
t+=10000;
}
else
{
if(s>0,8&&s<=30,8)
{
t=10000+11000*(s-0,8);
}
else
{
t=10000+11000*30+10000*(s-30,8);
}
}
t=(t/1000)*1000;
int k=t%1000;
if(k>=500)
{
t= t - k + 1000;
}
else
{
t = t - k;
}
return 0;
}
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