D112111123313223313112113313231133132333133313231333132333132322131211   >>    D11211112331322331311211331323113313233313331323133313233313232213121   <<    D112111123313223313112113313231133132333133313231333132333132322131213   >>      D112111123313223313112113313231133132333133313231333132333132322131212   >>