kkkkkkkkkkkkkkkkkkkkkkkkk
ggggggggggggggggggggggggggggggggggggg
ggggggggggggggggg
cccccccccccccccccccccccc
fffffffffffffffffffffffffffff
kkkkkkkkkkkkkkkkkkkk
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
ffffffffffffffffffffffffffff
ffffffffffffffffffffffffffffffffffffff
cccccccccccccccccccc
ffffffffffffffffffffff
fffffffffffffffffffffff