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#include <bits/stdc++.h>
using namespace std;
double gaodu(double m,int n)
{
return m*pow(0.5,n);
}
double juli(double m,int n)
{
return m+(pow(2,n+1)-4)*gaodu(m,n);
}
int main()
{
double m;
int n;
cin>>m>>n;
double ans1=gaodu(m,n);
double ans2=juli(m,n);
printf("%.2lf %.2lf",ans1,ans2);
return 0;
}
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