A zenith" angle $($one type of vertical angle$)$ is measured with a total station, first in "direct" $($face $1,$ F$1)$ mode, and then in "reverse" $($face $2,$ F$2)$ mode. The sum of the direct and reverse zenith angles should be exactly $360\backslash$deg for a calibrated instrument $.$ For the angles below, check whether they total $360,$ and adjust both by the same amount $($both $+$ or both $-)$ so that the adjusted angles add up to exactly $360$