B3313221211233132322331321123233313231333132233133313331311211331323232311   >>    B331322121123313232233132112323331323133313223313331333131121133132323231   <<    B3313221211233132322331321123233313231333132233133313331311211331323232313   >>      B3313221211233132322331321123233313231333132233133313331311211331323232312   >>