Васин, осужденный за грабеж

Vasin, convicted of robbery (part 1 of article 161 of the Criminal Code of the Russian Federation) to 3 years of imprisonment, after serving 1 year 6 months committed hooliganism (part 2 of article 213 of the Criminal Code of the Russian Federation). The court, having sentenced to 4 years of imprisonment for a newly committed crime, swallowed up the unserved part of the punishment according to the previous sentence.
Assignment: Describe the sentencing algorithm in this case; determine the correctness of the assigned punishment (type, size); identify the type of correctional institution that should be assigned to the perpetrator.

After payment you will be available a link to the solution of this problem in the file of MS Word. It should be noted that the problem solutions put up for sale were successfully handed over in the period 2009-2019 and could be outdated. However, the general algorithm will always remain true.