B3313221211233132322331321123233313231333132233133313331333131211111321121   >>    B331322121123313232233132112323331323133313223313331333133313121111132112   <<    B3313221211233132322331321123233313231333132233133313331333131211111321123   >>      B3313221211233132322331321123233313231333132233133313331333131211111321122   >>