注意：
要记得赋初值

#include<iostream>
#include<string>
using namespace std;
int main(){
	int n,x;
	cin>>n;
	string str;
	
	for(int i=0;i<n;i++){
		cin>>str;
		int a=0,b=0,sum=0;
		for(int i=0;i< str.size()/2;i++){
			a = a*10 + (str[i]-'0');
			sum = sum *10 + (str[i]-'0');
		}
		for(int i=str.size()/2;i<str.size();i++){
			b = b*10 + str[i]-'0';
			sum = sum *10 + (str[i]-'0');
		}
// printf("sum = %d, a = %d, b = %d\n",sum,a,b);
		if(a*b==0) printf("No\n");
		else if(sum%(a*b)==0) printf("Yes\n");
		else printf("No\n");
	}
	
	
	return 0;
}