var (yMin, yMax, xMin, xMax, line) = (-0.2, 0.2, -1.5, -1.0, "");
var (yDel, xDel) = (yMax-yMin, xMax-xMin);
for(var yPixel = 0; yPixel < 24; yPixel += 1) {
    var y = (yPixel/24)*yDel+yMin;
    for(var xPixel = 0; xPixel < 80; xPixel += 1) {
        var x = (xPixel/80)*xDel+xMin;
        var pixel = " ";
        var (x0, y0) = (x, y);
        for(var iter = 0; iter < 100; iter += 1) {
            var x1 = (x0*x0)-(y0*y0)+x;
            var y1 = 2*x0*y0+y;
            (x0, y0) = (x1, y1);
            if ((x0*x0)+(y0*y0)>4) {
                pixel = chr(" .:;+=xX$&"[iter/8]);
                break;
            }
        }
        line ~= pixel;
    }
    line ~= '\n';
}

print(line);