Backward Reference (PGM parameter)

//JOB1 JOB 1,'MAHA'
//STEP1 EXEC PGM=IEFBR14
//DD1 DD DSN=KC03H09.MAHA6.PDS,
// DISP=(NEW,CATLG),
// SPACE=(TRK,(5,2,0))
//STEP2 EXEC PGM=*.STEP1.DD1
//SYSPRINT DD SYSOUT=*
//SYSIN DD DUMMY