This paper investigates the design of overlapped chunked codes (OCC) for multi-source multi-relay networks where a physical-layer network coding approach. compute-and-forward (CF) based on nested lattice codes (NLC). is applied for the simultaneous transmissions from the sources to the relays. This code is called OCC/CF. https://www.lightemupsequences.com/hot-mega-Esko-Nexus-HeightMaster-Vented-Safety-Helmet-big-savings/