aaaaaaabaaaaaaazzzzzzzzzzzzzzaaaaaabaaaaaaazzzzzzzzzzzzzzaaaaaabaaaaaaazzzzzzzzz
aaaabbbbbbbaaaaazzzzzzzzzzzaaaaabbbbbbbaaaaazzzzzzzzzzzaaaaabbbbbbbaaaaazzzzzzzz
aabbbbbbbbbbbaaaaazzzzzzzaaaaabbbbbbbbbbbaaaaazzzzzzzaaaaabbbbbbbbbbbaaaaazzzzzz
bbbbbbbcbbbbbbbaaaaaaaaaaaaaabbbbbbcbbbbbbbaaaaaaaaaaaaaabbbbbbcbbbbbbbaaaaaaaaa
bbbbcccccccbbbbbaaaaaaaaaaabbbbbcccccccbbbbbaaaaaaaaaaabbbbbcccccccbbbbbaaaaaaaa
bbcccccccccccbbbbbaaaaaaabbbbbcccccccccccbbbbbaaaaaaabbbbbcccccccccccbbbbbaaaaaa
cccccccdcccccccbbbbbbbbbbbbbbccccccdcccccccbbbbbbbbbbbbbbccccccdcccccccbbbbbbbbb
ccccdddddddcccccbbbbbbbbbbbcccccdddddddcccccbbbbbbbbbbbcccccdddddddcccccbbbbbbbb
ccdddddddddddcccccbbbbbbbcccccdddddddddddcccccbbbbbbbcccccdddddddddddcccccbbbbbb
dddddddedddddddcccccccccccccdddddddedddddddccccccccccccccddddddedddddddccccccccc
ddddeeeeeeedddddcccccccccccdddddeeeeeeedddddcccccccccccdddddeeeeeeedddddcccccccc
ddeeeeeeeeeeedddddcccccccdddddeeeeeeeeeeedddddcccccccdddddeeeeeeeeeeedddddcccccc
eeeeeeefeeeeeeedddddddddddddeeeeeeefeeeeeeeddddddddddddddeeeeeefeeeeeeeddddddddd