[Script] Lottery possibilities [6 numbers]

local current_file = 0
local file

for a = 1, 55 do
    if file then
        file:close()
    end
    current_file = current_file + 1
    file = io.open(current_file .. ".txt", "a+")
    for b = a + 1, 56 do
        for c = b + 1, 57 do
            for d = c + 1, 58 do
                for e = d + 1, 59 do
                    for f = e + 1, 60 do
                        file:write(string.format("%02d\t%02d\t%02d\t%02d\t%02d\t%02d\n", a, b, c, d, e, f))
                    end
                end
            end
        end
    end
end