{HEAD ~ An input device} includes a supporting unit which is provided with first shafts, and {TAIL ~ a rotating unit} is connected to the first shafts in a rotatable manner 
{ HEAD ~ An input device } includes a supporting unit which is provided with first shafts , and { TAIL ~ a rotating unit } is connected to the first shafts in a rotatable manner
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH