Let $M$ be a $1$-dimenaionaldimensional complex manifold. Let $A$ be the space of all holomorphic functions $f:M\to \mathbb{C}$ such that either $f$ is a constant function or every level set $f^{-1}(c)$ is a finite (probeblyprobably empty) set. Is $A$ an algebra of functions? Is its closurclosure, with respect to topology of uniform convergence on compact subsets, equaulequal to space of all holomorphic functions from $M$ to $\mathbb{C}$?