#include <iostream>
#include<cmath>
using namespace std;

int main() {
    cout<<"hi.\n";
    cout<<sqrt(81)<<"\n";
    cout<<log(45)<<"\n";

    for(int i=0;i<5;i++){
        cout<<i<<"\n";
    }

    for(int j =0; j<9;j++){
        cout<<j<<"\n";
    }
    

    return 0;
}