Listing: 1 MODULE TArr; 2 VAR a : ARRAY [1 .. 3] OF INTEGER; ExitCode : INTEGER; 3 BEGIN 4 a[1] := 7; 5 a[2] := a[1] + 5; 6 a[3] := 20; 7 ExitCode := a[1] + a[2] + a[3] 8 END TArr. 0 errors