#include <iostream>

 #include <string>

 #include <algorithm>

 #include <cstdio>

 #include <cstring>

 using namespace std;

 //字符串的乘法

 string multi(string a, string b){

     int i, j, arr[], len = a.length() + b.length();

     memset(arr, , sizeof arr);

     reverse(a.begin(), a.end());

     reverse(b.begin(), b.end());

     for (int i = ; i<a.length(); i++)

     for (int j = ; j<b.length(); j++)

         arr[i + j] += (a[i] - '')*(b[j] - '');

     for (int i = ; i<len; i++){

         arr[i + ] += arr[i] / ;

         arr[i] %= ;

     }

     string ret = string(len, '');

     for (int i = ; i<len; i++)

         ret[i] += arr[i];

     reverse(ret.begin(), ret.end());//翻转

     return ret;

 }

 string Str_Pow(string x, int p){

     string ret = "";

     while (p){

         if (p & ) ret = multi(ret, x);

         x = multi(x, x);

         p >>= ;

     }

     return ret;

 }

 int main(){

     string a;

     int n;

     while (cin >> a >> n){

         int index = a.find('.');

         if (index == -) index = ;

         else {

             //substr() 是字符串截取函数

             a = a.substr(, index) + a.substr(index + );

             index = (a.length() - index)*n;

         }

         a = Str_Pow(a, n);

         a = a.substr(, a.length() - index) + "." + a.substr(a.length() - index);

         int i;

         for (i = ; i<a.length(); i++)

             if (a[i] != '')

                 break;

         //substr(i) 从i到end

         a = a.substr(i);

         for (int i = a.length() - ; i >= ; i--){

             if (a[i] == '.'){

                 a = a.substr(, i);

                 break;

             }

             else if (a[i] != ''){

                 a = a.substr(, i + );

                 break;

             }

         }

         cout << a << endl;

     }

     return ;

 }