#include<iostream> using namespace std; int main() { double a,b,c,d,e; a=1; b=3; c=5; d=7; e=9; cout<<a*3.1415926<<endl; cout<<b*3.1415926<<endl; cout<<c*3.1415926<<endl; cout<<d*3.1415926<<endl; cout<<e*3.1415926; return 0; }