W p 1 1 t p

W p 1 1 t pW p 1 1 t pW p 1 1 t pW p 1 1 t p
W p 1 1 t pW p 1 1 t pW p 1 1 t pW p 1 1 t pW p 1 1 t pW p 1 1 t p