#include<bits/stdc++.h>
using namespace std;
int main() {
	for(int i=1;i<=9;i++){
		for(int k=1;k<=9;k++){
			if(k<=i){
				cout<<i<<"x"<<k<<"="<<i*k<<" ";
			}
		}
		cout<<endl;
	}
	return 0;
}

python

import math

print('\n'.join(['\t'.join([f'{i}x{j}={i * j}' for j in range(1, i + 1)]) for i in range(1, 10)])