zipped (x:xs) =
    (x, xs) :
    (Lens.mapped . _2 %~ (x:)) (zipped xs)
zipped (x:xs) =
    (x, xs) :
    (Lens.mapped . _2 %~ (x:)) (zipped xs)
zipped (x:xs) =
    (x, xs) :
    (Lens.mapped . _2 %~ (x:)) (zipped xs)