B3313221211233132322331321123233313231333131211113313232213232331   >>    B331322121123313232233132112323331323133313121111331323221323233   <<    B3313221211233132322331321123233313231333131211113313232213232333   >>      B3313221211233132322331321123233313231333131211113313232213232332   >>