func_code_string: #include <bits/stdc++.h>   #pragma GCC optimize(2)   using namespace std;   inline int read() {     char c = getchar();     int x = 0;     bool f = 0;     for (; !isdigit(c); c = getchar()) f ^= !(c ^ 45);     for (; isdigit(c); c = getchar()) x = (x << 1) + (x << 3) + (c ^ 48);     if (f) x = -x;     return x;   }   bool work() {     int a = read(), b = read();     if (a > b) swap(a, b);     if (a == 0) return (b == 0);     if (a * 2 < b) return 0;     if (a * 2 == b) return 1;     int c = (abs(b - a - a));     return (a + b) % 3 == 0;   }   signed main() {     int n = read();     while (n--)       if (work())         puts( YES );       else         puts( NO );     return 0;   }   