Generate Random numbers based on user input

Random Number Generate.ahk

;Random Number Generate
;Avi
MsgBox, 36, Choose, Yes for A`, No for B
IfMsgBox yes
{
loop,
{
StringRight,rightest,a_tickcount,1
if rightest in 1,2,3,4,5
{
	randomnumber := rightest
	break
}
}
}
IfMsgBox, No
{
loop,
{
StringRight,rightest,a_tickcount,1
if rightest in 6,7,8,9
{
	randomnumber := rightest
	break
}
}
}
MsgBox, 64, Result, The random number generated was %randomnumber%