D3312121211331313331313232233132322331323132233131133132313231311211   >>    D331212121133131333131323223313232233132313223313113313231323131121   <<    D3312121211331313331313232233132322331323132233131133132313231311213   >>      D3312121211331313331313232233132322331323132233131133132313231311212   >>