D1212121221323132313232332313232233131133131323223313231313232212331   >>    D121212122132313231323233231323223313113313132322331323131323221233   <<    D1212121221323132313232332313232233131133131323223313231313232212333   >>      D1212121221323132313232332313232233131133131323223313231313232212332   >>