A + B + D + F = 22
F + G + H + I = 22
A + C + E + I = 22
(A + F + I) + (A + B + ... + I) = 66
1 + 2 + .... + 9 = 45
A + F + I = 21
(A, F, I)
= (9, 8, 4), (9, 7, 5), (8, 7, 6)
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(9, 8, 4)
8 + 9 = 17 ä¸è¾¹ï¼å©ä¸ä¸¤ä¸ªåè¦ 5ï¼ åªå© 2 + 3
4 + 8 = 12 ä¸è¾¹ï¼å©ä¸ä¸¤ä¸ªåè¦ 10ï¼æ²¡æå¯ä»¥çæ°å¼
(9, 7, 5)
7 + 9 = 16 ä¸è¾¹ï¼å©ä¸ä¸¤ä¸ªåè¦ 6ï¼ åªå© 2 + 4
5 + 7 = 12 ä¸è¾¹ï¼å©ä¸ä¸¤ä¸ªåè¦ 10ï¼æ²¡æå¯ä»¥çæ°å¼
(8, 7, 6)
7 + 8 = 15 ä¸è¾¹ï¼å©ä¸ä¸¤ä¸ªåè¦ 7ï¼ åªå© 2 + 5 or 3 + 4
6 + 7 = 13 ä¸è¾¹ï¼å©ä¸ä¸¤ä¸ªåè¦ 9ï¼åªå© 4 + 5
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