Student $A$ and student $B$ used two screw gauges of equal pitch and 100 equal circular divisions to measure the radius of a given wire. The actual value of the radius of the wire is 0.322 cm. The absolute value of the difference between the final circular scale readings observed by the students $A$ and $B$ is \_\_\_\_.\\
[Figure shows position of reference $O$ when jaws of screw gauge are closed]\\
Given pitch $= 0.1\mathrm{~cm}$.