HOW TO RETURN popcount n:
    IF n=0: RETURN 0
    RETURN (n mod 2) + popcount (floor (n/2))

HOW TO REPORT evil n:
    REPORT (popcount n) mod 2 = 0

HOW TO REPORT odious n:
    REPORT (popcount n) mod 2 = 1

FOR i IN {0..29}: WRITE popcount (3 ** i)
WRITE /

PUT {} IN evilnums
PUT {} IN odiousnums

FOR n IN {0..59}:
    SELECT:
        evil n: INSERT n IN evilnums
        odious n: INSERT n IN odiousnums

FOR i IN {1..30}: WRITE evilnums item i
WRITE /
FOR i IN {1..30}: WRITE odiousnums item i
WRITE /