import patterns;

defaultpen(0.5);
bbox(white, Fill);
size(1024, 0);

real gap = stdin;

draw((0, 0) -- (gap * 2, 0), black);

for (int i = 0; i < 3; ++i) {
  int n = stdin;
  real wh = stdin;

  real cx = i * gap;
  real h = 1;

  for (int j = 0; j < n; ++j) {
    real y = stdin;
    filldraw((cx, y + wh) -- (cx + wh, y) -- (cx - wh, y) -- cycle,
        fillpen=white + opacity(0.8),
        black);
    h = max(h, y + wh);
  }

  draw((cx, 0) -- (cx, h));
}
  
shipout(bbox(xmargin=0, white, Fill));