View Compilation Error

0_0_15085526_29313.pas(8,6) Error: Identifier not found "a"
0_0_15085526_29313.pas(9,6) Error: Identifier not found "b"
0_0_15085526_29313.pas(10,6) Error: Identifier not found "c"
0_0_15085526_29313.pas(13,13) Error: Identifier not found "num"
0_0_15085526_29313.pas(14,11) Error: Identifier not found "num"
0_0_15085526_29313.pas(15,11) Error: Identifier not found "a"
0_0_15085526_29313.pas(15,14) Error: Identifier not found "a"
0_0_15085526_29313.pas(16,11) Error: Identifier not found "num"
0_0_15085526_29313.pas(16,11) Fatal: Syntax error, ")" expected but ":=" found
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)