Changes

In the case you don't have it you nevertheless can run the demo by executing the files in following 10 order:

1. run"clear >

2. run"a1 >

3. run"a2 >

4. run"a3 >

5. run"b1 >

6. run"b2 >

7. run"b3 >

8. run"c1 >

9. run"c2 >

10. run"c3 >11. run"robo)