#include<iostream>
using namespace std;
int main()
{
	int i,j;
	cout<<"1x1=1"<<endl;
	cout<<"1x2=2"<<endl;
	cout<<"."<<endl;
	cout<<"."<<endl;
	cout<<"9x8=72"<<endl;
	cout<<"9x9=81"<<endl;
	return 0;
}