iex> Base62.encode(28)
"S"

iex> Base62.encode(44)
"i"

iex> Base62.encode(280)
"4W"

iex> Base62.decode!("100")
3844

iex> Base62.decode!("igas")
10650166

iex> Base62.decode!("EvilMartians")
776957886790921093120

iex> Base62.decode("42")
{:ok, 250}

iex> Base62.decode("Игас")
:error

iex> Base62.decode("Elixir")
{:ok, 13531063449}