B3313221211233132322331321123233313231333132233133313331333132322113233231   >>    B331322121123313232233132112323331323133313223313331333133313232211323323   <<    B3313221211233132322331321123233313231333132233133313331333132322113233233   >>      B3313221211233132322331321123233313231333132233133313331333132322113233232   >>