Element Tree with PRO_E_SURF_CHAIN_CMPND formation for feature creation

I am using Creo Parametric Release 11.0 and Datecode11.0.2.0

Need sample code for Pro/Toolkit C-API to form the following element tree...

// PRO_E_SURF_CHAIN_CMPND
// |-- PRO_E_SURF_CHAIN_REF_SURFS
// |-- PRO_E_SURF_CHAIN_SURF
// |-- PRO_E_SURF_CHAIN_REF