#include <iostream>
using namespace std;
int main()
{
float unit, num;
cin >> unit;
cin >> num;
if(unit == 1) num = num * 0. 1;
if(unit == 2) num = num * 1000;
if(unit == 4) num = num * 0. 001;
if(unit == 5) num = num * 0. 01;
cout << num;
return 0;
}