print("Random Math V0.1")
::diff::
print("")
print("What difficulty?")
print("easy medium hard")
gd = 0 dif = io.read()
if dif == "easy" then
    lives = 3
    ran1 = 1
    ran2 = 2
elseif dif == "medium" then
    lives = 2
    ran1 = 1
    ran2 = 3
elseif dif == "hard" then
    lives = 1
    ran1 = 1
    ran2 = 3.5
else
    os.execute("cls")
    print("invalid response")
    goto diff
end
os.execute("cls")
rnd = 1
while lives > 0 do
    mult = 0.75+(rnd * 0.25)
    mult = math.floor(mult)
    num1 = math.random(ran1 * mult, ran2 * mult)
    num2 = math.random(ran1 * mult, ran2 * mult)
    if rnd >= 20 then
        asmd = math.random(1,4)
    elseif rnd >= 10
        then asmd = math.random(1,3)
    elseif rnd >= 5 then
        asmd = math.random(1,2)
    else
        asmd = 1
    end
    if asmd == 1 then
        ans = num1 + num2
        print("What is "..num1.." + "..num2.."?")
        pa = io.read()
        if pa == ans then
            print("Correct!")
            rnd = rnd + 1
        else
            print("Wrong")
            print("Correct answer was "..ans)
            print("Your answer was "..pa)
            lives = lives - 1
            print("You now have "..lives.." lives")
        end
    elseif asmd == 2 then

    elseif asmd == 3 then

    else

    end
end

print("Game Over")
print("You Lost to Round "..rnd)