In 0,1,2,3. Of these natural numbers, if there are x prime numbers, a odd numbers, Y composite numbers and B even numbers, then

The title seems to be unfinished
If that's all,
The conclusion I can draw is: x + y + 2 = a + B
"2" is "0" and "1" in natural numbers
"0" and "1" are neither prime numbers nor composite numbers. Except for "0" and "1", natural numbers are either prime numbers or composite numbers
Natural numbers are even except odd ones
X + y + 2 = a + B = number of natural numbers

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