<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><div><div><div class="AppleOriginalContents"><blockquote type="cite"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><blockquote type="cite"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><meta http-equiv="Content-Type" content="text/html charset=us-ascii"><div></div><div><br></div><div>1. Spiral Traveling Up parallel with the Wall Plane</div><div>2. Spiral Traveling Forward parallel with the Floor Plane</div><div>3. Spiral Traveling to the Side parallel with the Floor Plane</div><div><br></div><div>Then there is a fourth symbol:</div><div><br></div><div></div></div></blockquote></div></blockquote></div></div></div></body></html>