Format 4: PERFORM statement with VARYING phrase
1 PERFORM
1 ?
2.1 THROUGH
2.1 THRU
1 %phrase 1 %phrase 2
1 %phrase 1? END-PERFORM
Format 4: PERFORM statement with VARYING phrase
1 PERFORM
1 ?
2.1 THROUGH
2.1 THRU
1 %phrase 1 %phrase 2
1 %phrase 1? END-PERFORM