D131333132213233313233313231231232333132322331311331323223313123231311211   >>    D13133313221323331323331323123123233313232233131133132322331312323131121   <<    D131333132213233313233313231231232333132322331311331323223313123231311213   >>      D131333132213233313233313231231232333132322331311331323223313123231311212   >>