defaultfont:="ptmr8r"; warningcheck:=0; beginfig(1) u=1cm; path p[]; p1:=(.5u,.5u)--(1.5u,.5u)--(.5u,1.5u) --(1.5u,1.5u)--(.5u,.5u)--cycle; fill (p1 shifted (0,2.5u)) rotatedaround ((u,3.5u),90); draw p1 shifted (u,4u); fill p1 shifted (3.5u,3u); p2 =(2u,2u)..(u,3.5u)..(2u,5u) ..(4.5u,4u)..(7u,5u); pickup pencircle scaled 4pt; draw p2; endfig; end;