FizzBuzz is a kids game turned popular by its prominence in job interviews for software developers. This solution can also be found on Rosetta Code.
IDENTIFICATION DIVISION. PROGRAM-ID. FIZZBUZZ. DATA DIVISION. 01 INT PICTURE IS 9(3). 01 REM LIKE INT. 01 TMP LIKE INT. PROCEDURE DIVISION. LOOP VARYING INT TO 100 DIVIDE 3 INTO INT GIVING TMP REMAINDER REM IF REM = 0 THEN DISPLAY "Fizz" WITH NO ADVANCING * NB: no END! DIVIDE 5 INTO INT GIVING TMP REMAINDER REM IF REM = 0 THEN DISPLAY "Buzz" WITH NO ADVANCING * NB: again, no END! DIVIDE 15 INTO INT GIVING TMP REMAINDER REM IF REM = 0 THEN DISPLAY "" ELSE DISPLAY INT * NB: still, no END! END. * Okay, this is an END but for the LOOP, not for IFs!
Having three unclosed IFs in a sequence leads to a highly ambiguous parse which only converges by witnessing the last END which is mandatory for LOOP. Hence, no dangling!