View Code of Problem 69

#include<iostream>
#include<algorithm>
#include<math.h>
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<cstring>
#include<string>
using namespace std;
int main() {
    int x;
    cin>>x;
    if(x<1)
    cout<<x;
    else if(x<10)
    cout<<2*x-1;
    else
    cout<<3*x-11;
	return 0;
}