Evolution of FS. (i) Upper row: The left panel illustrates the gas density, n, as a function of radius, the second panel shows the compression ratio, Cr, and the speed of the shock, Vsh, as functions of time, and the third panel depicts the magnetic-field strength near the shock, B. Theblack vertical line denotes the position of the SNR FS. (ii) Lower row: The first panel shows proton (Pr) spectra volume-averaged downstream of the FS. The corresponding electron (El) spectra are illustrated in the second panel. The third panel shows the spectra of synchrotron emission (red), IC emission (black) and PD emission (blue).