Also, in case you have an empty field, you will want to explore coding the DSD INFILE statement parameter. Honestly, what were you expecting to hear back from your original post, especially when no SAS code or diagnostics output was submitted with your post?
You may want to consider "trying to get a feel for the data" by using DATALINES; and coding a small set of instream input or build a 2 to 10 line input file with a data sample -- at least setup your INPUT statement to decode your input file structure and add some PUTLOG _ALL_; commands after your INPUT or near the end of your DATA step, for self-diagnosis and a bit of learning about your data.
Scott Barry
SBBWorks, Inc.