Finally, you have an extra semicolon in your output statement.
2.
The PL / C compiler had the unusual capability of never failing to compile any program, through the use of extensive automatic correction of many syntax errors and by converting any remaining syntax errors to output statements.
3.
A compiler developed at Cornell University for teaching a dialect called PL / C, which had the unusual capability of never failing to compile any program through the use of extensive automatic correction of many syntax errors and by converting any remaining syntax errors to output statements.