In the five Olympic rings, there are nine blanks. Please fill in the nine blanks with 1 to 9 numbers. The sum of the numbers in each circle is equal to 13

The top row
The middle row & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 6 & nbsp; & nbsp; 2 & nbsp; & nbsp; 8 & nbsp; & nbsp; 4
The last row

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