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Find the number of positive integers that satisfy both the following conditions:

Each digit is a 1 or a 2

The sum of the digits is 3

 Feb 25, 2023
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I'm not sure if I'm correct because im not very good at math. But:

12 (1+2 = 3), 21 (2+1 = 3), 111 (1+1+1)... 3

not sure lmao

 Feb 25, 2023

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