Sven is thinking of two numbers. thesum is 12 the difference is 4 what are the two numbers

I tried each possible combination and quickly found the answer, that's how it looks:

11 + 1 = 12

11 - 1 = 10

10 + 2 = 12

10 - 2 = 8

9 + 3 = 12

9 - 3 = 6

8 + 4 = 12

8 - 4 = 4

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So the numbers Sven was thinking of are 8 and 4.

The answer is 4 and 8.

8 + 4 = 12

8 - 4 = 4