#include <stdio.h>
int main(){
    
    int length,breath;
    double r;
    double radius=3.14*(r)^2;
    
    scanf("%d%d%d",&lenght,&breathz,&r);
    
    int areaofrec=lenght*breath;
    
    double areaofcir=radius;
    
    printf("%d\n",areaofrec);
    
    printf("%.2f",areaofcir);
    
    
    
}