Program if2;
Uses Robot;
Begin
Task('if2');
paint;
left;
if WallFromLeft then begin
                     Paint;
                     Right;
                     End
                else Right;
Right;
if WallFromRight then begin
                      Paint;
                      Left;
                      End
                 else Left;
Up;
if WallFromUp then begin
                   Paint;
                   Down;
                   End
              else Down;
Down;
if WallFromDown then begin
                     Paint;
                     Up;
                     End
                else Up;
End.