aaaa┬┴┬┴┤
baaa┬┴┬┴┤
caaa┬┴┬┴┤
daaa┬┴┬┴┤
eaaa┬┴┬┴┤
faaa┬┴┬┴┤
gaaa┬┴┬┴┤
haaa┬┴┬┴┤
iaaa┬┴┬┴┤
jaaa┬┴┬┴┤
kaaa┬┴┬┴┤
laaa┬┴┬┴┤
maaa┬┴┬┴┤
naaa┬┴┬┴┤
oaaa┬┴┬┴┤
paaa┬┴┬┴┤