View Code of Problem 69

import java.util.*;

public class Main {
	public static void main(String[] args) {
		Scanner in =new Scanner(System.in);
		double x=in.nextDouble();
		
		double d;
		if(x<1)d=x;
		else if(x<10)d=2*x-1;
		else d=3*x-11;
		System.out.println((int)d);
	}

}