#include<bits/stdc++.h> using namespace std; int main (){ int a=3.1415926; int b=1; int c=3; int d=5; int e=7; int f=9; cout<<a*b*a*b<<endl; cout<<a*c*a*c<<endl; cout<<a*d*a*d<<endl; cout<<a*e*a*e<<endl; cout<<a*f*a*f<<endl; return 0; }