We present a new public access ANSI C software for calculating the chemical evolution of a Single Stellar Population (SSP). We calculate the yields from 9 «heavy» elements: ¹²C, ¹⁴N, ¹⁶O, ²⁰Ne, ²⁴Mg, ²⁸Si, ³²S, ⁴⁰Ca, ⁵⁶Fe, as well as the yields for ¹H and ⁴He. The characteristic feature of the present code is a high modularity, which allows one to use it together with other programs in a user's code. As a test of our code in the distributive we present calculating the chemical evolution of a closed system in the Simple Model approximation.