b,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.
b,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.
b,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.
b,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.
b,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.
b,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.
b,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.
b,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.
b,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.
b,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.
b,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.
b,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.
b,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.
b,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.
b,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.
b,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.
b,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.
y,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.
y,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.
b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b