D33131112113313231333133313233313231333132333132322331123313232321111   >>    D3313111211331323133313331323331323133313233313232233112331323232111   <<    D33131112113313231333133313233313231333132333132322331123313232321113   >>      D33131112113313231333133313233313231333132333132322331123313232321112   >>