"""N
Aa a a a a a a 0 a. Aa a a, a a a a a.N
Aa a a, a a (a a a) a a a.N
Aa a a, a a a 0 a(a) a a a a a a. Aa a, a a a a a a a a.N
Aa a a a a a a a, a a a a 0 a.N
Aa a a a, a a a a a, a'a a a a a a a 0 a a.N
Aa a a a 0 a a a a (a a a a), a a a'a a a a a a a,N
a a a'a a-a-a a a a a a ?N
Aa a a a a a'a, a a a a a a a'a, a a=0 a a=0N
"""N
a = 0N
a = 0N
a = 0N
a = 0N
a = 0N
N
N
N
N
N
N
N
N
N
a a < a:N
