aa-nnn-a
a-nnn-aa
nn-na-aa
aa-an-nn
aa-nn-aa
a-nnn-aa
nn-na-aa
aa-an-nn
nn-aaa-n
aa-nnn-a
a-nnn-aa
nn-na-aa
aa-a-nnn
aa-nn-aa
a-nnn-aa
n-aaa-nn
aa-nn-nn
