D1212121212131323131133132311233132322331323321211113313231323131323223321   >>    D121212121213132313113313231123313232233132332121111331323132313132322332   <<    D1212121212131323131133132311233132322331323321211113313231323131323223323   >>      D1212121212131323131133132311233132322331323321211113313231323131323223322   >>