function p2()
= 1, 2
a, b = 2
sum while true
= a + b
current_fibo_term > 4_000_000 && break
current_fibo_term iseven(current_fibo_term) && (sum += current_fibo_term)
= b, current_fibo_term
a, b end
return sum
end;
p2()
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