Lotto (Duży Lotek) generator in Ruby

numbers = []
while(numbers.size != 6) do
 x = (rand(49) + 1)
 numbers << x unless numbers.include?(x)
end
numbers.sort!

Simple password generator in Ruby

The code is so simple that it needs no description:

(100000000000 + rand * 1000000000000).to_i.to_s(36)