Proton fluxes (left panel) and He fluxes (right panel) compared to the data of DAMPE (An et al. 2019; Alemanno et al. 2021, cyan triangles), NUCLEON (Grebenyuk et al. 2019a, green points), Icecube-Icetop (Aartsen et al. 2019, orange diamonds), KASCADE (Antoni et al. 2005, pink and violet points), and KASCADE-Grande (Arteaga-Velázquez et al. 2017, yellow points). The red curves correspond to the case with two source populations. The blue curves correspond to the case of a source CR luminosity decreasing with the increase in maximum rigidity.