As stated in the title, prove that there exists $g\in C[0,1]$-continuous function on $[0,1]$- such that $g(x_1)\ldots g(x_n) \neq g(y_1)\ldots g(y_n)$ for all $x_1 \neq y_1$, $\ldots$, $x_n \neq y_n$.
I think this is true, but actually I don't know how to construct such a function. Does anybody have idea?