Answer
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I doub between:
<span> C) A series of 4 full size, but individual tweets (with the tweet copy appearing above the first image of the series) D) A collage format, with full size images</span>
66,73 73-66=7
13,21 21-13=8
10,20 20-10=10
the missing no. is 9 so
52+9=61.
the pattern is
66,73,13,21,52,61,10,20
It looks like you need to get both numbers from the input. Try doing something like this:
print(int(input()) + int(input()))
