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

#define BASEFREQ 1024

static int nint(double d)
{
 if (d < 0) return(d-.5); else return(d+.5);
}

static void write_sample(int s)
{
 if (s < -32767) s = -32767;
 if (s > 32767) s = 32767;
 putchar((s>>8)&0xff);
 putchar(s&0xff);
}

int main(void);
int main(void)
{
 int t;
 int n;
 double k;
 double x;
 double ph;
 double ln2;
 double v[4001];

 ln2 = log(2);
 n = ((BASEFREQ/ln2) * (sqrt(2)-1)) + 1;
 k = log((n*ln2/BASEFREQ)+1) / ln2;
 ph = 0;
 for (t=0;t<4001;t++)
  { x = (t * k) / 4000;
    v[t] = (BASEFREQ / ln2) * 2 * M_PI * (pow(2,x) - 1);
  }
 if (v[4000]-(n*2*M_PI) > 1e-10) abort();
 for (t=0;t<4000;t++) write_sample(nint(sin(v[t])*3000));
 for (t=3999;t>=0;t--) write_sample(nint(sin(-v[t])*3000));
 exit(0);
}