Free Pascal Compiler version 2.0.2 [2005/11/26] for i386 Copyright (c) 1993-2005 by Florian Klaempfl Target OS: Linux for i386 Compiling cifru4.pas cifru4.pas(1,1) Error: Illegal char constant cifru4.pas(1,2) Fatal: Syntax error, "BEGIN" expected but "const string" found cifru4.pas(1,2) Fatal: Compilation aborted Error: /usr/bin/ppc386 returned an error exitcode (normal if you did not specify a source file to be compiled)