Example 5 SORTIN01-02 DD statements (merge)
//SORTIN01 DD DSNAME=INPUT1,VOLUME=SER=000101, *
// UNIT=3390,DISP=OLD *DCB PARAMETERS
//SORTIN02 DD DSNAME=INPUT2,VOLUME=SER=000201, *SUPPLIED FROM
// UNIT=3390,DISP=OLD *LABELS