1program symtest (input, output);
2
3procedure Level1Procedure ;
4 procedure Level2Procedure ;
5 procedure Level3Procedure ;
6 procedure Level4Procedure ;
7 procedure Level5Procedure ;
8 begin
9 end;
10 begin
11 end;
12 begin
13 end;
14 begin
15 end;
16begin
17end;
18
19begin
20end.
21