the contents of the raw data file CALENDAR are listed below:

01012000

the following SAS program is submitted:

data test;

infile 'calendar';
input @1 date mmddyy10;
if date='01012000'd then EVENT ='January 1st';
run;

which one of the following is the value of the EVENT variable?

why the answer is : the value can not be determined as the program fails to execute due to errors