2 targs ?

Okay so i need an x number for how far it travels and why for the current Y coord the player is at
here is what i have for x

tArgs = { ... }
local x = tonumber(tArgs[1] or "")
while not x do
	    print("Need a distance to travel in number form")
	    x = tonumber(read())
end

but how do i do get a second targ

Think. If tArgs[1] gets the first argument, what would get the second?