tttttttttttttttttttttttttttt
ttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt
7777777777777777777777777777777777777777
777777777777777777777777777777777777777777777777777777777
ffffffffffffffffffffffffffffffffffffffffffff
ggggggggggggggggggggggggggggggggggrrrrrrrrrrrrrrrrrrrrrrrrrrrffffffffffffffff