% produced by fig2vect
prologues:=0;
labeloffset:=0;bbmargin:=0;
beginfig(0)
% 21
path p;
p = (0.0,0.0)
--(135.0,0.0)
--(135.0,54.0)
--(0.0,54.0)
--cycle;
% 10
path p;
p = (((fullcircle cutafter ((0.0,0.0)--(-1.07669,0.22527))) rotated 5.90853)
scaled 36.0) shifted (27.0,27.0);
color c;
c = (0,0,0);
linecap:=0;
linejoin:=0;
pickup pencircle scaled 0.9;
draw p withcolor c;
path a;
ahangle:=28.07;
ahlength:=7.2;
a = arrowhead p;
fill a withcolor white;
draw a withcolor c;
path a;
a = arrowhead (reverse p);
draw a withcolor c;
% 13
path p;
p = (((fullcircle cutafter ((0.0,0.0)--(-1.07669,0.22527))) rotated 185.909)
scaled 36.0) shifted (54.0,27.0);
color c;
c = (0,0,0);
draw p withcolor c;
path a;
a = arrowhead p;
fill a withcolor c;
draw a withcolor c;
path a;
a = arrowhead (reverse p);
fill a withcolor white;
draw a withcolor c;
% 16
path p;
p = (((fullcircle cutafter ((0.0,0.0)--(-1.07669,0.22527))) rotated 5.90853)
scaled 36.0) shifted (81.0,27.0);
color c;
c = (0,0,0);
draw p withcolor c;
path a;
a = arrowhead p;
fill a withcolor white;
draw a withcolor c;
path a;
a = arrowhead (reverse p);
fill a withcolor c;
draw a withcolor c;
% 19
path p;
p = (((fullcircle cutafter ((0.0,0.0)--(-1.1,0.0))) rotated 180.0)
scaled 36.0) shifted (108.0,27.0);
color c;
c = (0,0,0);
draw p withcolor c;
path a;
a = arrowhead p;
fill a withcolor c;
draw a withcolor c;
endfig;
end