x,y,z,*a=$<.read.split.map &:to_i
b=[]
(x-1).times do |i|
  b<< a[i+1..[i+y,x-1].min].max-a[i]
end
g=b.max
if g<1
  p 0
else
  p g*z
  puts [t=b.index(g),a[t..t+y].index(a[t]+g)].*" "
end