[1, 1, 1, 1, 1, 1]
[0, 1, 2, 3, 4, 5]
[]
[102, 102]
[0, 1]
[]
[10202, 10202, 10203]
[0, 1]
[10203]
[1020302, 1010202, 1010102]
[0]
[1010202, 1010102]
[1010202, 1010102]
[0]
[1010102]
[102010303, 102020102, 101020103, 101010203, 102020203, 101020202]
[0]
[102020102, 101020103, 101010203, 102020203, 101020202]
[102020102, 101020103, 101010203, 102020203, 101020202]
[0]
[101020103, 101010203, 102020203, 101020202]
[101020103, 101010203, 102020203, 101020202]
[0]
[101010203, 102020203, 101020202]
[101010203, 102020203, 101020202]
[0]
[102020203, 101020202]
[102020203, 101020202]
[0]
[101020202]
7