to this
= is
According to the law, during an eight-hour working day, the temperature of the air in the office room should be 23-25 ° C in the warm season and 22-24 ° C in the cold (at relative humidity of 40-60%). A deviation from the norm is allowed only at 1-2 ° C. The permissible fluctuation of temperature during the working day is no more than 3-4 ° C. In total, if the temperature (23-2-4=17, 25+2+4=31) is between 17 and 31 degrees - you steep your tongue in your ass and squeeze.
=========
2 for mathematics and 2 for logic.
23-2=21 and 25+2=27 27-23=4 is a fluctuation of 4 degrees.
So I want to include this and ask"yes how you live...without brains"