#include<bits/stdc++.h>
using namespace std;
int main(){
	int a,z;
	cin>>a;
	if(a<=100){
		z=2;
		cout<<z*a;
	}if(a>100){
		z=1;
		cout<<(a-100)*1+100*2;
	} 	
}
/**************************************************************
	Problem: 1637
	User: sucongyi
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2072 kb
****************************************************************/