begin{tikzpicture}[xscale=1]
draw (0,0,0) sin (1,1,0) cos (2,0,0) sin (3,-1,0) cos (4,0,0) sin (5,1,0) cos
(6,0,0) sin (7,-1,0);
draw (0,0,4) sin (1,1,4) cos (2,0,4) sin (3,-1,4) cos (4,0,4) sin (5,1,4) cos
(6,0,4) sin (7,-1,4);
draw (0,0,-2) sin (1,1,-2) cos (2,0,-2) sin (3,-1,-2) cos (4,0,-2) sin
(5,1,-2) cos (6,0,-2) sin (7,-1,-2);
draw (0,0,2) sin (1,1,2) cos (2,0,2) sin (3,-1,2) cos (4,0,2) sin (5,1,2) cos
(6,0,2) sin (7,-1,2);
draw (1,1,-2) -- (1,1,4);
draw (5,1,-2) -- (5,1,4);
end{tikzpicture}