#include<iostream>
using namespace std;


int main()
{
	int i,j,k;
    for(j=1;j<=10;j++)
    {
        for(i=1;i<=10;i++)
        {
            k=i*j;
            cout<<i<<"X"<<j<<"="<<k<<"\t";
        }
        cout<<endl;
    }


    cout<<endl;

    for(j=1;j<=10;j++)
    {
        for(i=11;i<=15;i++)
        {
            k=i*j;
            cout<<i<<"X"<<j<<" = "<<k<<"\t";
        }
        cout<<"\n";
    }

    cout<<endl;

    for(j=1;j<=10;j++)
    {
        for(i=16;i<=20;i++)
        {
            k=i*j;
            cout<<i<<"X"<<j<<" = "<<k<<"\t";
        }
        cout<<"\n";
    }
	return 0;

}