B331133131323131133132233133313231323133313132322331333132322112121   >>    B33113313132313113313223313331323132313331313232233133313232211212   <<    B331133131323131133132233133313231323133313132322331333132322112123   >>      B331133131323131133132233133313231323133313132322331333132322112122   >>