The nuclear modification factor for $\psi(\rm 2S)$, compared to the corresponding quantity forJ/$\psi$, as a function of $p_{\rm T}$. Plots correspond to p-Pb (left) and Pb-p(right) collisions The horizontal bars correspond to the width of the transverse momentum bins The vertical error bars correspond to statistical uncertainties, the boxes to uncorrelated systematic uncertainties, and the shaded areas to partiallycorrelated uncertainties. The filled box on the right, centered at $R_{\rm pPb}=1$, shows uncertainties that are fully correlated between J/$\psi$ and $\psi(\rm 2S)$ For details on model comparisons, see the caption of Fig4.