B331133131323131133132233133313231323133313132322331333132313331123312121   >>    B33113313132313113313223313331323132313331313232233133313231333112331212   <<    B331133131323131133132233133313231323133313132322331333132313331123312123   >>      B331133131323131133132233133313231323133313132322331333132313331123312122   >>