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program pro10(input,output);
var n,i,j,t:integer;
    a: array[1..100000] of integer;
begin
 readln(n);
 j:=0;
 for i:=1 to n do
  read(a[i]);
 readln;
 i := 2;
 while (i<=n) do
  begin
   if ( (a[i-1]>0) and (a[i]<0) ) then
    begin
     j := j+1;
     t:= a[i-1];
     a[i-1] := a[i];
     a[i] := t;
    end;
   else
   i := i+1;
  end;
 writeln(j);
 writeln(a[1]);
 writeln(a[n]);
 {for i:= 1 to n do
  write(a[i]);
 writeln;}
end.

Free Pascal Compiler version 2.2.0 [2009/11/16] for i386
Copyright (c) 1993-2007 by Florian Klaempfl
Target OS: Linux for i386
Compiling prog.pas
prog.pas(20,4) Fatal: Syntax error, ";" expected but "ELSE" found
Fatal: Compilation aborted
Error: /usr/bin/ppc386 returned an error exitcode (normal if you did not specify a source file to be compiled)

Standard output is empty