#include <iostream>

using namespace std;

double Pow(double x, unsigned int n);

int main() {
    for(unsigned int i = 0; i < 10; ++i) {
        cout << "2^" << i << "  = " << Pow(2,i) << endl;
    }

    return 0;
}
  

double Pow(double x, unsigned int n){
     double answer{1};

     if(n > 0) {
         answer = x * Pow(x, n-1);
     }

     return answer;
}