#include<bits/stdc++.h> using namespace std; int a,b,c,d,e,f,g,h; double pi=3.14,w,x,y,z; int main(){ cin>>a>>b; w=piaab; x=piaa2+2pia*b; cout<<fixed<<setprecision(1)<<w<<" "<<x; return 0; }