n,d,K,*x=$<.read.split.map &:to_i
m=[0,0,0]
c=h=x[0]+1
n.times{|j|a,f=x[j],[j+d,n-1].min
((j+1..f).map{|k|v=x[k]-a;v<0&&break;v>m[0]&&m=[v,j,k]})if a<c||x[f]>x[h]
c,h=a,f}
puts m[0]<1?0:[m.shift*K,m*' ']