Answer / mayank

We can use SORT to exclude the duplicate
SORT FIELDS=NONE remove the dup from fileC

//STEP1 PGM=SORT
//*** concatinated input files
//SORTIN DD DSN=FILEA,DISP=SHR
// DD DSN=FILEB,DISP=SHR
//** output file contains records except for duplicate
//SORTOUT DD DSN=FILEC,
// DISP=(NEW,CATLG,DELETE),
// VOL=SYSDA,
// SPACES=(CYL(1,1),RLSE),
// DCB=(LRECL=80,RECFMT=F,BLKSIZE=0)
//** give the sort parameter in below sysin
//SYSIN *
SORT FIELDS=(start postion of rec, length of
rec,attribute, A/D)
SUM FIELDS=NONE

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