MicroFocus Cobol

I am running a Microfocus Cobol program on HP/Unix “L” series machine that reads a text file to parse it. The input file has the carriage return represented by “\n”. My program uses the octal representation for carriage return “0D” thus it fails at runtime with error 153 “Subscript is out of range”. Any idea how would I handle this problem without changing the input file.

Thanks
Sanjay