D21221323131123313131333132233131133131323223313232212121223331   >>    D2122132313112331313133313223313113313132322331323221212122333   <<    D21221323131123313131333132233131133131323223313232212121223333   >>      D21221323131123313131333132233131133131323223313232212121223332   >>