In addition, dedicated function buttons 10 may be used for other interactions requiring numeric input, such as inputting {TAIL ~ security codes}, {HEAD ~ credit card numbers}, etc 
In addition , dedicated function buttons 10 may be used for other interactions requiring numeric input , such as inputting { TAIL ~ security codes } , { HEAD ~ credit card numbers } , etc
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH