k,x,y=$<.map{_1.split.map &:to_i}
x,y=[x,y].map{|a|c=1,*t=[x=0]*M=1024
a.map{c[x^=_1]+=1}
(0...M).map{|i|(0...i).map{t[i^_1]+=c[i]*c[_1]};t[0]+=c[i]*~-c[i]/2}
t}
p (0...M).sum{x[_1]*y[_1^k[2]]}.%10**9+7