PRINT X

CLEAR F
REPEAT X TIMES (
    PRINT X

    CLEAR A
    REPEAT X TIMES (
        INCREASE A
    )

    CLEAR B
    REPEAT A TIMES (
        CLEAR C
        INCREASE C
        INCREASE C
        REPEAT C TIMES (
            INCREASE B
        )
    )

    CLEAR D
    REPEAT B TIMES (
        INCREASE D
    )
    CLEAR X
    REPEAT D TIMES (
        INCREASE X
    )

    
    CLEAR E
    REPEAT X TIMES (
        INCREASE E
        INCREASE E
        INCREASE E
    )
    INCREASE E
    CLEAR X
    REPEAT E TIMES (
        INCREASE X
    )
)