a aa aaa aaaa aaaaa aaaaaa aaaaaaa aaaaaaaa aaaaaaaaa aaaaaaaaaa b bb bbb bbbb bbbbb bbbbbb bbbbbbb bbbbbbbb bbbbbbbbb bbbbbbbbbb c cc ccc cccc ccccc cccccc ccccccc cccccccc ccccccccc cccccccccc d dd ddd dddd ddddd dddddd ddddddd dddddddd ddddddddd dddddddddd e ee eee eeee eeeee eeeeee eeeeeee eeeeeeee eeeeeeeee eeeeeeeeee f ff fff ffff fffff ffffff fffffff ffffffff fffffffff ffffffffff g gg ggg gggg ggggg gggggg ggggggg gggggggg ggggggggg gggggggggg h hh hhh hhhh hhhhh hhhhhh hhhhhhh hhhhhhhh hhhhhhhhh hhhhhhhhhh i ii iii iiii iiiii iiiiii iiiiiii iiiiiiii iiiiiiiii iiiiiiiiii j jj jjj jjjj jjjjj jjjjjj jjjjjjj jjjjjjjj jjjjjjjjj jjjjjjjjjj k kk kkk kkkk kkkkk kkkkkk kkkkkkk kkkkkkkk kkkkkkkkk kkkkkkkkkk l ll lll llll lllll llllll lllllll llllllll lllllllll llllllllll m mm mmm mmmm mmmmm mmmmmm mmmmmmm mmmmmmmm mmmmmmmmm mmmmmmmmmm n nn nnn nnnn nnnnn nnnnnn nnnnnnn nnnnnnnn nnnnnnnnn nnnnnnnnnn o oo ooo oooo ooooo oooooo ooooooo oooooooo ooooooooo ooooooooooo p pp ppp pppp ppppp pppppp ppppppp pppppppp ppppppppp pppppppppp q qq qqq qqqq qqqqq qqqqqq qqqqqqq qqqqqqqq qqqqqqqqq qqqqqqqqqq r rr rrr rrrr rrrrr rrrrrr rrrrrrr rrrrrrrrr rrrrrrrrrr rrrrrrrrrrr s ss sss ssss sssss ssssss sssssss ssssssss sssssssss ssssssssss t tt ttt tttt ttttt tttttt ttttttt tttttttt ttttttttt tttttttttt u uu uuu uuuu uuuuu uuuuuu uuuuuuu uuuuuuuu uuuuuuuuu uuuuuuuuuu v vv vvv vvvv vvvvv vvvvvv vvvvvvv vvvvvvvv vvvvvvvvv vvvvvvvvvv w ww www wwww wwwww wwwwww wwwwwww wwwwwwww wwwwwwwww wwwwwwwwww x xx xxx xxxx xxxxx xxxxxx xxxxxxx xxxxxxxx xxxxxxxxx xxxxxxxxxx y yy yyy yyyy yyyyy yyyyyy yyyyyyy yyyyyyyy