Current location - Trademark Inquiry Complete Network - Overdue credit card - The number on the credit card consists of 14 digits, and each digit is written in the box below. If the sum of any three adjacent numbers is equal to 20,
The number on the credit card consists of 14 digits, and each digit is written in the box below. If the sum of any three adjacent numbers is equal to 20,
As shown in the table,
? ? ? 9 a b c x d e f 7？ ? From the meaning of the question: 9+a+b=20, a+b= 1 1,