#include using namespace std; #define int int64_t #define pb push_back #define f(a,b) for(int i=a; i>t; int a, b; while(t--) { cin>>a>>b; while(true) { a>b ? a-=2, b-- : b -= 2,a--; if(a==0 || b==0) break; } if(a==0 && b==0) { cout<<"YES\n"; continue; } if(a==0 && b!=0) { cout<<"NO\n"; continue; } if(a!=0 || b==0) { cout<<"NO\n"; continue; } } return 0; }