B331133131323131133132233133313231323223313231313331333132313123232212331   >>    B33113313132313113313223313331323132322331323131333133313231312323221233   <<    B331133131323131133132233133313231323223313231313331333132313123232212333   >>      B331133131323131133132233133313231323223313231313331333132313123232212332   >>