On the excess of sets of complex exponentials

For $-\infty<n<\infty$ let $\mu _n$ be complex numbers such that $\mu _n-n$ is bounded. For $n>0$ define $\lambda _n=\mu _n+a$, $\lambda _{-n}=\mu _{-n}-b$ where $a,b\ge 0$. Then the excesses $E$ in the sense of Paley and Wiener satisfy $E(\{\lambda _n\})\le E(\{\mu _n\})$.