If statement with || and multiple &&

I have booleans A, B, C, D set to false.

I have following code if (A && B || C && D) {Debug.i("Check", "stars")}

When will I get "stars" message?

1. When A and B OR C and D set to true.
2. When A, B/C, D set to true

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ANSWER

A && B || C && D

should be treated as

(A && B) || (C && D)