View Compilation Error

0_0_27392275_19478.pas(2,5) Error: Duplicate identifier "a"
0_0_27392275_19478.pas(8,4) Fatal: There were 1 errors compiling module, stopping
Fatal: Compilation aborted
Error: Pascel\bin\i386-win32\ppc386.exe returned an error exitcode (normal if you did not specify a source file to be compiled)