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

static unsigned char data[100 * 800];

inline void SetAtXY(int x, int y){
	data[(x/8)+(y*100)] |= 1<<(7-(x%8));
}

#define CONV_RAD (3.1415926f/180.0f)

int main(void){
	float i;
	float dist = 360.0f;
	#define LOOPS 8
	for (i=0;i<LOOPS*360.0f;i+=0.001f){
		dist-=0.001f*(1.0f/LOOPS);
		SetAtXY( dist*sin((float)i*CONV_RAD) + 400 , dist*cos((float)i*CONV_RAD) + 400 );
	}
	FILE *fp = fopen("result.pbm","wb");
	fprintf(fp, "P4\n800 800\n");
	fwrite(data, 1, 80000, fp);
	fclose(fp);
}