D1212121221323132313232332313232233131133131323223313231323222331   >>    D121212122132313231323233231323223313113313132322331323132322233   <<    D1212121221323132313232332313232233131133131323223313231323222333   >>      D1212121221323132313232332313232233131133131323223313231323222332   >>