#include <iostream>
#include <math.h>
#include <stdlib.h>

using namespace std;

int main()
{
	float r;
	int n,dot,num[200],tem[6],res[6][200],pre;
	int shi,cal_pre,i,j;
	int wei[6];
    int shit;
	int mi;
	int last;
	char ch[7];
	int chp;

	while (cin>>r>>n)
	{
		if (n==0)
			cout<<1<<endl;
		else
		{
    		for (i=0;i<200;i++)
    			num[i]=0;
    		pre=5;

			if (r>=10)
				sprintf(ch,"%2.4f",r);
			else
				sprintf(ch,"%f",r);

			if (ch[6]=='0')
			{
    	    	chp=0;
        		while (pre>=0)
				{
        			if (ch[chp]==' ')
					{
        				pre=-1;
					}
        			else
        			if (ch[chp]=='.')
					{
        				dot=pre+1;
					}
        			else 
					{
        				num[pre--]=(int(ch[chp])-48);
        				tem[pre+1]=num[pre+1];
					}
        			chp++;
				}
			}
			else 
			{
				dot=5;
				for (i=0;i<5;i++)
					tem[4-i]=num[4-i]=int(ch[i+2])-48;
				tem[5]=num[5]=0;
			}
//////////////////////////////////////////////////////////////////////
            pre=6;

    		for (mi=1;mi<n;mi++)
			{
        		cal_pre=0;
        		for (i=0;i<6;i++)
				{
        			shi=0;
        			while(cal_pre<pre)
					{

         				res[i][cal_pre]=int((tem[i]*num[cal_pre]+shi)%10);
        				shi=int(int(tem[i]*num[cal_pre]+shi)/10);
        				cal_pre++;
					}
        			res[i][cal_pre]=shi;
        			if (shi==0) wei[i]=pre;
        			else wei[i]=pre+1;
        			cal_pre=0;

				}
        		for (i=0;i<6;i++)
				{
        			if (i==0)
					{
        				for (j=0;j<wei[i];j++)
        					num[j]=res[0][j];
        				num[wei[i]]=0;
					}
        			else
					{
        				shi=0;
    	    			for (j=0;j<wei[i];j++)
						{
         					shit=shi;
        					shi=int((num[j+i]+res[i][j]+shi)/10);

        					num[j+i]=int((num[j+i]+res[i][j]+shit)%10);
						}
        				if (shi==0) num[j+i]=0;
    	    			else
						{
	        				num[j+i]=shi;
	        				num[j+i+1]=0;
						}
					}			
				}
        		pre=wei[5]+5;
			}// end for

    		dot=dot*n;
    		i=0;
    		while((num[i]==0)&&(i<dot))
    			i++;
    		if (i<dot)
			{
    			last=i;

    			j=pre-1;
    			while((num[j]==0)&&(j>=dot))
    				j--;
    			if (j>=dot)


    				for (;j>=dot;j--)
    					cout<<num[j];
    			cout<<".";
    			for (;j>=last;j--)
    				cout<<num[j];
    		    cout<<endl;
			}
	    	else 
			{
	    		last=dot;
	    		j=pre-1;
	    		while((num[j]==0)&&(j>=dot))
	    			j--;
	    		if (j<dot)
	    			cout<<0;
	    		for (;j>=last;j--)
	    			cout<<num[j];
	    	    cout<<endl;
			}

        }//end else
	}
	return 0;
}