Update 'rnd'

rnd.md

@@ -15,11 +15,10 @@ end
 function update()
     cls()
     for y=0,14 do
-        for x=2,17 do
+        for x=0,19 do
             locate(x,y)
-            ink(y)
+            color(rnd(16),rnd(16))
-            paper(x)
+            print(chr(rnd(256)))
-            print("\207")
         end
     end
 end