D112111123313223313112113313231133132333133313231323211331323132322233231   >>    D11211112331322331311211331323113313233313331323132321133132313232223323   <<    D112111123313223313112113313231133132333133313231323211331323132322233233   >>      D112111123313223313112113313231133132333133313231323211331323132322233232   >>