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⁠In increasing a punishment, it shall not be increased up to death, life imprisonment, or imprisonment of more than twenty years.

In decreasing a punishment of death, whether by decreasing the scale of punishment or by decreasing the punishment to be imposed, the decrease shall be made as follows:

⁠if it is to be decreased by one third, it shall be decreased to life imprisonment or imprisonment from sixteen years to twenty years;

⁠if it is to be decreased by one half, it shall be decreased to life imprisonment or imprisonment from twelve years to twenty years.

⁠In decreasing a punishment of life imprisonment, whether by decreasing the scale of punishment or by decreasing the punishment to be imposed, the decrease shall be made as follows:

if it is to be decreased by one third, it shall be decreased to imprisonment from fourteen years to sixteen years;

if it is to be decreased by one half, it shall be decreased to imprisonment from ten years to twelve years.

In making a calculation for increasing or decreasing a punishment to be imposed, the court shall first designate what punishment is to be imposed upon the accused and shall then