Thus, {HEAD ~ a shortcut key} using {TAIL ~ a hard key} and a touch screen together may be provided, thereby reducing inconvenience for a user to navigate to a menu and to input data 
using
Thus , { HEAD ~ a shortcut key } using { TAIL ~ a hard key } and a touch screen together may be provided , thereby reducing inconvenience for a user to navigate to a menu and to input data
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH