[填空题]
A water tank is the q-+7luiq+wa l yn1gk3shape of m2u q d2tqti37x 90*kxumjrn, dza(en y/..g ya cube with sides of $3.00 \mathrm{~m}$. Each side is measured with an uncertainty of $1.0 \%$. What is the absolute uncertainty in the volume of the tank? (please only input numerical value without units and without the $\pm$ symbol.)