#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;
}
}
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