include

include

using namespace std;

string multiple(string a, string b) //计算两高精度数乘积 {

int i, j;
string result = "0";
for(i = a.length() - 1; i >= 0; i--)
{
	int remain = 0;
	string str = "";
	for(j = b.length() - 1; j >= 0; j--)
	{
		int tmp = (a[i] - '0') * (b[j] - '0') + remain;
		remain = tmp / 10;
		str = (char)(tmp % 10 + '0') + str;
	}
	if(remain != 0)
	{
		str = (char)(remain + '0') + str;
	}

	int tmp = 0;
	int m = result.length() - (a.length() - i);
	int n = str.length() - 1;
	remain = 0;
	while(m >= 0 && n >= 0)
	{
		tmp = (result[m] - '0') + (str[n] - '0') + remain;
		remain = tmp / 10;
		result[m] = (char)(tmp % 10 + '0');
		m--;
		n--;
	}

	while(m >= 0)
	{
		tmp = (result[m] - '0') + remain;
		remain = tmp / 10;
		result[m] = (char)(tmp % 10 + '0');
		m--;
	}

	while(n >= 0)
	{
		tmp = (str[n] - '0') + remain;
		remain = tmp / 10;
		result = (char)(tmp % 10 + '0') + result;
		n--;
	}

	if(remain != 0)
	{
		result = (char)(remain + '0') + result;
	}
}

return result;

}

int main() {

int n, i, j;
string str;
while(cin >> str >> n)
{
	string res = "";
	int pos = str.find_first_of(".");

	if(pos != string::npos)
	{
		str.erase(pos, 1);
	}
	int num = str.length() - pos;

	if(n == 1) //计算str表示的数的n次幂
	{
		res = str;
	}
	else
	{
		res = multiple(str, str);
		for(i = 2; i < n; i++)
		{
			res = multiple(res, str);
		}
	}

	if(pos == string::npos)
	{
		cout << res << endl;
		continue;
	}

	int c = num * n;
	i = res.length() - 1;

	string s = "";
	while(c > 0 && i >= 0)
	{
		s = res[i--] + s;
		c--;
	}
	s = "." + s;

	for(j = 0; j <= i; j++)
	{
		if(res[j] != '0')
		{
			s = res.substr(j, i - j + 1) + s;
			break;
		}
	}

	for(i = s.length() - 1; i >= 0; i--)
	{
		if(s[i] == '0') //消除前导0
		{
			s.erase(i, 1);
		}
		else
		{
			break;
		}
	}
	if(s[s.length() - 1] == '.')
	{
		s.erase(s.length() - 1, 1);
	}

	cout << s << endl;
}

return 0;

}