wfg_inp3 = deltaEncode 1.0 $
    [Nothing,  Nothing,  Just 1.0, Just 2.0, Just 3.0,
     Just 4.0, Nothing,  Nothing,  Nothing,  Just 3.0,
     Just 2.0, Nothing,  Just 1.0, Just 0.0, Just 1.0,
     Just 2.0, Just 3.0, Nothing,  Nothing,  Just 4.0]
    ++ repeat Nothing
wfg_inp3 = deltaEncode 1.0 $
    [Nothing,  Nothing,  Just 1.0, Just 2.0, Just 3.0,
     Just 4.0, Nothing,  Nothing,  Nothing,  Just 3.0,
     Just 2.0, Nothing,  Just 1.0, Just 0.0, Just 1.0,
     Just 2.0, Just 3.0, Nothing,  Nothing,  Just 4.0]
    ++ repeat Nothing
wfg_inp3 = deltaEncode 1.0 $
    [Nothing,  Nothing,  Just 1.0, Just 2.0, Just 3.0,
     Just 4.0, Nothing,  Nothing,  Nothing,  Just 3.0,
     Just 2.0, Nothing,  Just 1.0, Just 0.0, Just 1.0,
     Just 2.0, Just 3.0, Nothing,  Nothing,  Just 4.0]
    ++ repeat Nothing