#include
#include

int main(){
int r;
float s,p;
const float pp=3.14;
printf("Plz enter a number \n ");
scanf("%d",&r);
p=2*pp*r;
s=pp*r*r;
printf("masahat=%6.3f - mohit=%6.3f",s,p);
getch();
return 0;
}