val g = Graph(
    (0 ~+#> 1) ('n'),
    (1 ~+#> 2) ('w'),
    (2 ~+#> 2) ('с'),
    (3 ~+#> 2) ('a'),
    (3 ~+#> 4) ('a'),
    (4 ~+#> 5) ('a'),
    (6 ~+#> 3) ('r'),
    (7 ~+#> 6) ('r'),
    (8 ~+#> 7) ('f'),
    (0 ~+#> 17) ('n'),
    (9 ~+#> 10) ('f'),
    (9 ~+#> 7) ('f'),
    (0 ~+#> 9) ('n'),
    (8 ~+#> 10) ('f'),
    (0 ~+#> 8) ('n'),
    (10 ~+#> 11) ('r'),
    (11 ~+#> 11) ('c'),
    (12 ~+#> 11) ('w'),
    (13 ~+#> 12) ('f'),
    (14 ~+#> 12) ('f'),
    (0 ~+#> 14) ('n'),
    (13 ~+#> 13) ('c'),
    (0 ~+#> 13) ('n'),
    (15 ~+#> 13) ('w'),
    (0 ~+#> 15) ('n'),
  )