D112111123313223313112113313231133132333133313231333131133132322111   >>    D11211112331322331311211331323113313233313331323133313113313232211   <<    D112111123313223313112113313231133132333133313231333131133132322113   >>      D112111123313223313112113313231133132333133313231333131133132322112   >>