D33131112113313231333133313233313231333132333132322331333133313211233131   >>    D3313111211331323133313331323331323133313233313232233133313331321123313   <<    D33131112113313231333133313233313231333132333132322331333133313211233133   >>      D33131112113313231333133313233313231333132333132322331333133313211233132   >>