∀ {C : Type u_2} [inst : CategoryTheory.Category.{u_1, u_2} C] [inst_1 : CategoryTheory.Abelian C]
  (S : CategoryTheory.ShortComplex.SnakeInput C),
  CategoryTheory.Limits.PreservesColimit (CategoryTheory.Limits.parallelPair S.v₁₂ 0) CategoryTheory.ShortComplex.π₃