AAA,aaa
AAa,a_aa
AA7,aa7
AaA,aa_a
Aaa,aaa
Aa7,aa7
A7A,a7a
A7a,a7a
A77,a77
aAA,a_aa
aAa,a_aa
aA7,a_a7
aaA,aa_a
aaa,aaa
aa7,aa7
a7A,a7_a
a7a,a7a
a77,a77
7AA,7aa
7Aa,7aa
7A7,7a7
7aA,7a_a
7aa,7aa
7a7,7a7
77A,77a
77a,77a
777,777