View Code of Problem 69

#include<bits/stdc++.h>
using namespace std;

int main() {

	int x;
	cin>>x;
	if(x<1){
		cout<<x<<endl;
	}else if(x<10){
		cout<<x*2-1<<endl;
	}else{
		cout<<3*x-11<<endl;
	}
	
	return 0;
}