B331133131323131133132233133313113313231123313231333133313232212111112121211   >>    B33113313132313113313223313331311331323112331323133313331323221211111212121   <<    B331133131323131133132233133313113313231123313231333133313232212111112121213   >>      B331133131323131133132233133313113313231123313231333133313232212111112121212   >>