calculate a time interval using macro variables

[fengyuwuzu]

data WORK.Time    ;
      infile 'Data.csv' delimiter = ',' MISSOVER DSD lrecl=32767 firstobs=2 ;
          format StartTime datetime. ;
          format ClosingTime datetime. ;
      input
            ID $12.
            StartTime :YMDDTTM.
            ClosingTime :YMDDTTM.
            Fee 
            time=INTCK('minute',ClosingTime,StartTime);
     run;

I tried to use the above code to input two time variables and calculate the interval between them. The time format was like 

2014-01-01 02:56:37 and after reading into SAS, it is like 01JAN14:02:56:37 

when I use

time=INTCK('minute',ClosingTime,StartTime);

but the INTCK function gave error:

ERROR 22-322: Syntax error, expecting one of the following: a name, arrayname, _ALL_, _CHARACTER_,
              _CHAR_, _NUMERIC_.

ERROR 76-322: Syntax error, statement will be ignored.

when I use   

   time = ClosingTime-StartTime;

RROR: Missing numeric suffix on a numbered variable list (ClosingTime-StartTime).

any hints?

[Astounding · Accepted solution]

Are you missing the semicolon at the end of the INPUT statement?

[fengyuwuzu]

yes. thanks.
this solved the problem.