import java.util.Scanner;
import java.math.BigDecimal;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
float x=scanner.nextFloat();
for(int i=0;i<3;i++){
for(int j=0;j<=i;j++){
BigDecimal bg=new BigDecimal(x);
x=bg.setScale(2,BigDecimal.ROUND_HALF_UP).floatValue();
if(j<i){
System.out.print(x+" ");
}
else
System.out.println(x);
}
}
}
}