亲和数
#include <iostream>
using namespace std;
int main ()
{
int a,b,c;
int sum1=0,sum2=0;
cin>>c;
for (int i=0;i<c;i++)
{
cin>>a>>b;
for (int i=1;i<a;i++)
{
if (a%i==0)
{
sum1=sum1+i;
}
}
for (int j=1;j<b;j++)
{
if (b%j==0)
{
sum2=sum2+j;
}
}
if (sum1==b&&sum2==a)
{
cout<<"YES"<<endl;
}
else
{
cout<<"No"<<endl;
}
}
return 0;
}