Bilingual solutions

Bilingual was solved using C by 4 contestants. Solution sizes: average 2305 bytes (shortest: 1411; longest: 3188).

49.

Vitaliy (S) (1411 B)
251.

baihacker (S) (3188 B)
624.

chiguri (S) (2587 B)
735.

hychen (S) (2035 B)