#include<bits/stdc++.h>
using namespace std;
int main(){
    int a;
    cin>>a;
    float>>a;
    if a<=10;
    a*2.2;
    else a*2;
    printf("%.1f");
    returnn 0;
}
/**************************************************************
	Problem: 1303
	User: chenzelin
	Language: C++
	Result: Compile Error
****************************************************************/