Randomise at the boundary to hit the size

Let $X_1,X_2,\dots ,X_5$ be a random sample of size 5 from an absolutely continuous distribution having median M. Let S denote the number of $X_i^{\prime }s$ greater than 0. For testing $H_0:M=0$ against $H_1:M>0$, let $\phi (X)=1$ if $S>c,\nu$ if S = c, and 0 if S < c be a test of size $\alpha =0.05$, where $\nu \in [0,1]$ and c ∈ {−1, 0, …, 5} are fixed constants. Then $c+\nu$ equals