float a
,c
,d
,r
,x
,y
;main
(b
,i
,j
,n
){for(i
=!scanf("%d",&n
);i
++<n
*n
;putchar(64>>!b
),putchar(13*!(i
%n
)))for(b
=d
=0;!b
&d
++<3600;r
=d
*.017,x
=r
*cos(r
)/2,y
=r
*sin(r
)*1.5,b
=fabs(i
/n
-n
/2-x
)<.7&fabs(-i
%n
+n
/2-y
)<.7);}
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