#include<bits/stdc++.h> using namespace std; int a; int main(){ cin>>a; if(a<10) printf("%.1lf",a*2.2); else printf("%.1lf",a*2.0); return 0; } /************************************************************** Problem: 1303 User: zhangziang Language: C++ Result: Accepted Time:16 ms Memory:2072 kb ****************************************************************/