cannot solve

(λa b c. a (b b a) a) | (λa b. a (b b a) a)
(λa b. a (a a a) a) | (λa b. a (λc. a c) a)
(λa b. a (a a)) | (λa b. a λc. b a c)
(λa b. a (a b b) a) | (λa b c. a (a a c) a)
(λa b. a (a b b)) | (λa b. a λc. c a)
(λa b. a (a b)) | (λa b. a λc. a c b)
(λa b. a (b a b)) | (λa b. a λc. b a)
(λa b. a (b a)) | (λa b. a λc. a c a)
(λa b. a (b b)) | (λa b c. a (b a))
(λa b. a (λc. a b (a b c)) a) | (λa b. a (λc. a b (c c)) a)
(λa b. a (λc. b a (a b c)) a) | (λa b. a (λc. b a (a c)) a)
(λa b. a a (a b b)) | (λa b. a a λc. c a)
(λa b. a a λc. a (a a a) a) | (λa b. a a λc. a (a c) a)
(λa b. a a λc. a (a b)) | (λa b. a a λc. a (c a c))
(λa b. a a λc. a (a c) a) | (λa b. a a λc. a (a b) a)
(λa b. a a λc. a b) | (λa b. a a (a b a))
(λa b. a a λc. a c a) | (λa b. a a (a a a))
(λa b. a a λc. b (b b b)) | (λa b. a a λc. b (b c c))
(λa b. a a λc. b (b c a)) | (λa b. a a λc. b (b a b))
(λa b. a a λc. b (c b b)) | (λa b. a a λc. b (a b b))
(λa b. a a λc. b (c b c) b) | (λa b. a a λc. b (c c b) b)
(λa b. a a λc. b (c c c)) | (λa b. a a λc. b (c a))
(λa b. a a λc. b a (a b b)) | (λa b. a a λc. b a (c b))
(λa b. a a λc. b b b) | (λa b. a a λc. a a)
(λa b. a λc. a (a b) a) | (λa b. a λc. a (a a c) a)
(λa b. a λc. a (a c) a) | (λa b. a λc. a (a c a) a)
(λa b. a λc. a (a c)) | (λa b. a λc. a (b b a))
(λa b. a λc. a (c b)) | (λa b. a λc. a (c a))
(λa b. a λc. a a (b c)) | (λa b. a λc. a a (b a))
(λa b. a λc. a a (c b)) | (λa b. a λc. a a (b a a))
(λa b. a λc. a b) | (λa b. a (a a))
(λa b. a λc. b (a c) b) | (λa b. a λc. b (c c b) b)
(λa b. a λc. b (b b a) a) | (λa b. a λc. b (b c b) a)
(λa b. a λc. b (b b a)) | (λa b. a λc. b (b a a))
(λa b. a λc. b (b b) a) | (λa b. a λc. b (b b b) a)
(λa b. a λc. b a (c a)) | (λa b. a λc. b a (c b a))
(λa b. a λc. b a) | (λa b. a (b b a))
(λa b. a λc. b b a) | (λa b. a (b a))
(λa b. a λc. c a b) | (λa b. a λc. c c)
(λa b. a λc. c a c) | (λa b. a (b b))
(λa b. a λc. c b b) | (λa b. a λc. c b)
(λa b. a λc. c b c) | (λa b. a λc. c c b)
(λa b. a λc. c c a) | (λa b. a λc. c c b)
(λa b. a λc. c c b) | (λa b. a (b b))
(λa b. a λc. c c c) | (λa b. a (b a a))
(λa b. b b) | (λa b. b a)
(λa b. a λc. b a b) | (λa b. a (b b))
(λa b. a a λc. a (c b a) b) | (λa b. a a λc. a (c b c) b)
(λa b. a λc. b (c b) a) | (λa b. a λc. b (c c) a)
(λa b. a λc. b (a b)) | (λa b. a λc. b (a a))
(λa b. a λc. a (a b)) | (λa b. a λc. a (a c b))
(λa b. a (λc. b b (b c)) a) | (λa b. a (λc. b b (b a)) a)
(λa b. a λc. b (a a) a) | (λa b. a λc. b (b b) a)
(λa b. a λc. a b) | (λa b. a λc. a c a)
(λa b. a a λc. a (c a b) b) | (λa b. a a λc. a (c c a) b)
(λa b. a (λc. b (c c) b) a) | (λa b. a (λc. b (c b a) b) a)
(λa b. a λc. c b c) | (λa b. a λc. c c c)
(λa b. a λc. b c c) | (λa b. a λc. b b c)
(λa b. a a λc. a a) | (λa b. a a (b b))
(λa b. a λc. a (c a)) | (λa b. a λc. a (b a c))
(λa b. a a λc. b (a b)) | (λa b. a a λc. b (c c))
(λa b. a (b b)) | (λa b. a λc. a b)
(λa b. a λc. b a (b c)) | (λa b. a λc. b a (b c a))
(λa b. a λc. b b) | (λa b. a (a b a))
(λa b. a a (a a b)) | (λa b. a a λc. a a c)
(λa b. b a) | (λa b. b b a)
(λa b. a λc. c b) | (λa b. a λc. c b c)
(λa b c. c b) | (λa b. b b)
(λa b. a a λc. b a (c a b)) | (λa b. a a λc. b a (c b b))
(λa b. a a λc. b (a b c) a) | (λa b. a a λc. b (a b b) a)
(λa b. a λc. a b (a b a)) | (λa b. a λc. a b (a b c))
(λa b. a λc. b (a c)) | (λa b. a λc. b (c c))
(λa b. a λc. a (c c a)) | (λa b. a λc. a (c b))
(λa b. a a λc. a a) | (λa b. a a (a b))
(λa b. a a λc. b b c) | (λa b. a a λc. c a)
(λa b. a λc. a (b a)) | (λa b. a λc. a (b b a))
(λa b. a (b a)) | (λa b. a λc. b b c)
(λa b. a a λc. a a b) | (λa b. a a λc. a a)
(λa b. a a λc. b c) | (λa b. a a λc. c a)
(λa b. a (b a b)) | (λa b. a λc. c b a)
(λa b. a a λc. a (a a)) | (λa b. a a λc. a (b a c))
(λa b. a (b b a) a) | (λa b. a (λc. b c) a)
(λa b. a (a b)) | (λa b. a λc. c a a)
(λa b. a (b a)) | (λa b. a λc. b a b)
(λa b. a λc. b (c a)) | (λa b. a λc. b (b c a))
(λa b. a λc. a (a a b)) | (λa b. a λc. a (c c a))
(λa b. a λc. b (a c)) | (λa b. a λc. b (a b))
(λa b. a λc. a a (a a)) | (λa b. a λc. a a (a c))
(λa b. a λc. c a b) | (λa b. a (b a))
(λa b. a λc. a c c) | (λa b. a (a b))
(λa b. a a λc. a b) | (λa b. a a (b a a))
(λa b. a a (b a)) | (λa b c. a a (a a))
(λa b. a λc. a b a) | (λa b. a λc. a b c)
(λa b. a a λc. a c) | (λa b. a a (a a))
(λa b. a (a a) a) | (λa b c. a (a a a) a)
(λa b. a λc. a (c a) b) | (λa b. a λc. a (a a) b)
(λa b. a λc. a (b b)) | (λa b. a λc. a (a a b))
(λa b. a a λc. a a) | (λa b. a a (a b b))
(λa b. a (b b)) | (λa b. a λc. b a)
(λa b. a (λc. b (b b c) b) a) | (λa b. a (λc. b (b c a) b) a)
(λa b c. a (b b c) a) | (λa b. a (a b a) a)
(λa b. a λc. a (b b a)) | (λa b. a λc. a (b b))
(λa b. a λc. b a (b b)) | (λa b. a λc. b a (b c))
(λa b. a λc. b a) | (λa b. a λc. a b a)
(λa b. a a λc. b b (b b)) | (λa b. a a λc. b b (c a b))
(λa b. a (b a a)) | (λa b. a λc. b b)
(λa b. a a λc. b a) | (λa b. a a (b b a))
(λa b. a (b b)) | (λa b. a λc. b b a)
(λa b. a λc. b c a) | (λa b. a (b b))
(λa b. a a λc. b b a) | (λa b. a a (b b b))
(λa b. a λc. a b (b c)) | (λa b. a λc. a b (b b c))
(λa b. a (b b b)) | (λa b. a λc. c a a)
(λa b. a a λc. b c) | (λa b. a a λc. b a c)
(λa b. a λc. b a (b c a)) | (λa b. a λc. b a (a b))
(λa b. a λc. b b (b c b)) | (λa b. a λc. b b (a c))
(λa b. a λc. a (a a a)) | (λa b. a λc. a (a a c))
(λa b c. a (a a c)) | (λa b. a (b b b))
(λa b. a λc. a b (c c c)) | (λa b. a λc. a b (c a))
(λa b. a λc. b (c a c)) | (λa b. a λc. b (c a b))
(λa b. a (b b)) | (λa b. a λc. c a)
(λa b. a λc. b (b c a) b) | (λa b. a λc. b (b b) b)
(λa b. a λc. b (a a)) | (λa b. a λc. b (c c a))
(λa b. a a λc. a (b b a)) | (λa b. a a λc. a (c a c))
(λa b. a a λc. a (c a)) | (λa b. a a λc. a (c c b))
(λa b. a a λc. c b c) | (λa b. a a (a b a))
(λa b. a λc. a b a) | (λa b. a (a a a))
(λa b. a λc. a a c) | (λa b. a λc. a a a)
(λa b. a λc. b (b c c)) | (λa b. a λc. b (b a))
(λa b. a a λc. c b b) | (λa b. a a λc. c c)
(λa b. a λc. a a) | (λa b. a λc. b c)
(λa b. a (λc. b b (b c)) a) | (λa b. a (λc. b b (b a)) a)
(λa b. a λc. c c) | (λa b. a (a a a))
(λa b. a (λc. a b (a a)) a) | (λa b. a (λc. a b (a c)) a)
(λa. a a) | (λa b. a a)