B331133131323131133132233133313231323223313233213233211111223331   >>    B33113313132313113313223313331323132322331323321323321111122333   <<    B331133131323131133132233133313231323223313233213233211111223333   >>      B331133131323131133132233133313231323223313233213233211111223332   >>