D3312121211331313331313232233132322331323132233132313331333233232321   >>    D331212121133131333131323223313232233132313223313231333133323323232   <<    D3312121211331313331313232233132322331323132233132313331333233232323   >>      D3312121211331313331313232233132322331323132233132313331333233232322   >>