Bc l

Bc lBc lBc lBc l
Bc lBc lBc lBc lBc lBc lBc lBc l
Bc lBc lBc lBc lBc lBc lBc lBc lBc lBc lBc lBc l
Bc lBc lBc lBc lBc lBc lBc lBc lBc lBc lBc lBc lBc lBc lBc lBc l
Bc lBc lBc lBc lBc lBc lBc lBc l