#include <bits/stdc++.h>
using namespace std;
double power(double a, double b) {
    double ans = 1;
    for(int i = 1; i <= b; i++){
        ans *= a;
    }
    return ans;
}

int main()
{
    double anaconda = 0;
    for(int i = 0; i < 25; i++){
        anaconda += power(10,i);
        cout << setprecision(30) << fixed <<i << " "<< anaconda << endl;
    }

}