D3312121211331313331323221123313232213331323133313133313232111231   >>    D331212121133131333132322112331323221333132313331313331323211123   <<    D3312121211331313331323221123313232213331323133313133313232111233   >>      D3312121211331313331323221123313232213331323133313133313232111232   >>