#include<stdio.h>
#include<math.h>
main()
{// data for a circle of radius 0.5 and centered in 0.5 0.5
    float x,y,th;
    int i;
    for(th=0.0;th<6.28;th=th+0.0628){
     x=0.5*cos(th);
     y=0.5*sin(th)+0.5;
     printf("%5.3f %5.3f \n",x,y);
    } 
}