ddds = [(11, 11), (12, 12), (13, 13), (14, 14), (15, 15), (16, 16), (17, 17), (18, 18), (19, 19), (21, 21), (22, 22), (24, 24), (27, 27), (28, 28), (31, 31), (32, 32), (33, 33), (34, 34), (35, 35), (37, 37), (38, 38), (41, 41), (42, 42), (43, 43), (44, 44), (45, 45), (46, 46), (47, 47), (48, 48), (49, 49), (51, 51), (53, 53), (54, 54), (55, 55), (61, 61), (62, 62), (63, 63), (64, 64), (65, 65), (66, 66), (67, 67), (68, 68), (69, 69), (71, 71), (73, 73), (74, 74), (75, 75), (77, 77), (79, 79), (81, 81), (82, 82), (83, 83), (84, 84), (85, 85), (86, 86), (87, 87), (88, 88), (89, 89), (91, 91), (92, 92), (93, 93), (94, 94), (95, 95), (96, 96), (97, 97), (98, 98), (99, 99)]