# A = 128
INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A
INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A
INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A
INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A
INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A
INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A
INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A
INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A
INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A
INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A
INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A
INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A
INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A
INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A
INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A
INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A INCREASE A

# gate
INCREASE C

REPEAT A TIMES (
  REPEAT C TIMES (
    PRINT X

    # I=floor(X/2), R=parity(X)
    CLEAR R
    CLEAR I
    REPEAT X TIMES (
      CLEAR T
      INCREASE T
      REPEAT R TIMES ( CLEAR T )
      CLEAR R
      REPEAT T TIMES ( INCREASE R )

      CLEAR U
      INCREASE U
      REPEAT R TIMES ( CLEAR U )
      REPEAT U TIMES ( INCREASE I )
    )

    # M = [X==1] = (I==0 AND R==1)
    INCREASE L
    REPEAT I TIMES ( CLEAR L )
    CLEAR M
    REPEAT L TIMES ( REPEAT R TIMES ( INCREASE M ) )

    # T := 1 - M  (do step only if not at 1)
    CLEAR T
    INCREASE T
    REPEAT M TIMES ( CLEAR T )

    # N := 1 - R  (even?)
    CLEAR N
    INCREASE N
    REPEAT R TIMES ( CLEAR N )

    # step (one Collatz move)
    REPEAT T TIMES (
      # odd: X := 3X+1
      REPEAT R TIMES (
        REPEAT X TIMES ( INCREASE X INCREASE X )
        INCREASE X
      )
      # even: X := I
      REPEAT N TIMES (
        CLEAR X
        REPEAT I TIMES ( INCREASE X )
      )
    )

    # latch C := T (stop after printing 1)
    CLEAR C
    REPEAT T TIMES ( INCREASE C )
  )
)