#include <stdio.h>
#include <math.h>

int main()
{
    float pi=3.14,r,a;
    printf("Enter the radius of the circle:\n");
    scanf("%f",&r);
    a=pi*pow(r,2);
    printf("THE  AREA OF THE CIRLCE IS : %.4f",a);
    return 0;
    
    
}