ooooooooooooooooooooooooo
ssssssssssssssssssssssssssssssssss
tttttttttttttttttttttttttttttttttttt
fffffffffffffffffffffffffffffffffffffffffffffff
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllll
ooooooooooooooooooooooooooooooooo
oooooooooooooooooooooooooooooooooo
dddddddddddddddddddddddddddddddddd
fffffffffffffffffffffffffffffff
lllllllllllllllllllllllllllllllll
ooooooooooooooooooooooooooooooooo
dddddddddddddddddddddddddddddddddd