> #include <iostream>
> 
> using namespace std;
> 
> void p(double ss,int n)
> {
> 	int point,i,s,l;
> 	if (ss<10) 
> 	{
> 		point=4;
> 		s=ss*10000;
> 	}
> 	else
> 	{
> 		point=3;
> 		s=ss*1000;
> 	}
> 
> 	int a[200]={0},c,d;
> 	a[0]=s%10;
> 	a[1]=(s/10)%10;
> 	a[2]=(s/100)%10;
> 	a[3]=(s/1000)%10;
> 	a[4]=(s/10000)%10;
> 	if (n!=1)
> 	{
> 	for (int j=2;j<=n;j++)
> 	{
> 		d=0;
> 		for (i=0;i<=199;i++)
> 		{
> 			c=a[i]*s+d;
> 			a[i]=c%10;
> 			d=c/10;
> 		}
> 	}
> 	}
> 	point=point*n;
> 	for (i=199;i>=0;i--)
> 	{
> 		if (a[i]!=0) break;
> 	}
> 	for (int j=0;j<=199;j++)
> 	{
> 		if (a[j]!=0) break;
> 	}
> 	if (point<=j)
> 	{
> 		for (int l=i;l>=point;l--)
> 			cout<<a[l];
> 		cout<<endl;return;
> 	}
> 	if (point>i)
> 	{
> 		cout<<'.';
> 		for (l=point-1;l>=j;l--)
> 			cout<<a[l];
> 		cout<<endl;
> 		return;
> 	}
> 	for (l=i;l>=point;l--)
> 		cout<<a[l];
> 	cout<<'.';
> 	for (l=point-1;l>=j;l--)
> 		cout<<a[l];
> 	cout<<endl;
> 	return;
> }
> 
> int main()
> {
> 	int n; 
> 	double ss;
> 	while(cin>>ss>>n)
> 	{
> 		if (ss==0.0)
> 		{
> 			cout<<0<<endl;
> 			continue;
> 		}
> 		p(ss,n);
> 	}
> 	return 0;
> }