D1212121221323132313232332313232233131133131323223313231323133313231321   >>    D121212122132313231323233231323223313113313132322331323132313331323132   <<    D1212121221323132313232332313232233131133131323223313231323133313231323   >>      D1212121221323132313232332313232233131133131323223313231323133313231322   >>