#define PI 3.1415926
void main()
{ float c,s1,v,s2;
scanf("%f",&r);
c=2*PI*r;
s1=PI*r*r;
v=4/3*PI*r*r;
s2=4*PI*r*r;
printf("%0.2f%0.2f%0.2f%0.2f\n"c,s1,v,s2);
}
#define PI 3.1415926
void main()
{ float c,s1,v,s2;
scanf("%f",&r);
c=2*PI*r;
s1=PI*r*r;
v=4/3*PI*r*r;
s2=4*PI*r*r;
printf("%0.2f%0.2f%0.2f%0.2f\n"c,s1,v,s2);
}