Go: package main

import "fmt"

func main() {
    var max_num = 9
    for i := 1; i<= max_num; i++{
        for j := 1; j<= max_num; j++{
            fmt.Printf("%dx%d=%d\n",i,j,i*j)
        }
    }
}

C++: #include <iostream>
using namespace std;

int main(){
  for(int i=1;i<10;i++){
    for(int j=1;j<10;j++){
      cout << i << "x" << j << "=" << i*j << endl;
    }
  }
}

C++: #include<iostream>
using namespace std;

int main(){

	for (int i = 0; i < 9; i++){
		for (int j = 0; j < 9; j++){
			cout << i + 1 << "x" << j + 1 << "=" << (i+1)*(j+1) << endl;
		}
	}
	//getchar();

	return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;
#define FOR(i, s, n) for(int i = s; i < (int)n; i++)
#define per(i, n) for(int i = n; i >= 0; i--)
#define ROF(i, s, n) for(int i = s; i >= (int)n; i--)
#define FORIT(i, A) for (auto i : A)
#define PRINT(x) cout << (x) << "\n"
#define ALL(a) (a).begin(),(a).end()
#define RALL(a) (a).rbegin(), (a).rend()
#define MP make_pair
#define EACH(i, n) for (__typeof((n).begin()) i = (n).begin(); i != (n).end(); ++i)
#define SZ(a) int((a).size())
#define EXIST(s,e) ((s).find(e)!=(s).end())
#define SORT(c) sort((c).begin(),(c).end())
#define CLR(a) memset((a), 0 ,sizeof(a))
#define NCLR(a) memset((a), -1 ,sizeof(a))
#define dump(x) cout << #x << " = " << (x) << "\n";
#define debug(x) cout << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FILE__ << "\n";
#define sq(n) (n) * (n)
typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<string> VS;
typedef pair<int, int> PII;
typedef long long LL;
typedef vector<LL> VLL;
typedef vector<VLL> VVLL;
typedef unsigned int uint;
typedef unsigned long long ull;
typedef priority_queue<int> maxpq;
typedef priority_queue< int, vector<int>, greater<int> > minpq;
typedef complex<double> P;
static const double EPS = 1e-10;
static const double PI = acos( -1.0 );
static const int mod = 1000000007;
static const int INF = 1 << 29;
static const LL LL_INF = 1152921504606846976;
static const int dx[] = { -1, 0, 1, 0, 1, -1, 1, -1 };
static const int dy[] = { 0, -1, 0, 1, 1, 1, -1, -1 };


int main() {
#ifdef _DEBUG
	printf( "debug\n" );
#endif
	for ( int i = 1; i < 10; i++ ) {
		for ( int j = 1; j < 10; j++ ) {
			printf( "%dx%d=%d\n", i, j, i - j );
		}
	}
	return 0;
}

C++: #include<iostream>
using namespace std;

int main(){
    for(int i=1;i<=9;i++){
for(int j=1;j<=9;j++){
cout << i << 'x' << j << '=' << i*j << '\n';
}
}
    return 0;
}

C++: #include<iostream>

using namespace std;

int main(){

	int i,j;

	for( i=1;i<=9;i++ ){
		for( j=1;j<=9;j++ ){
			cout<<i<<"x"<<j<<"="<<i*j<<endl;
		}
	}
	return 0;
}

C++: #include<iostream>
using namespace std;

int main(){
for(int i=1;i<10;i++){
 for(int j=1;j<10;i++){
std::cout << i << 'x' << j << '=' i*j <<std::endl;
    return 0;
}

C++: #include <iostream>
using namespace std;

int main(){
	for (int i = 1; i < 10; ++i){
		for (int j = 1; j < 10; ++j){
			printf("%dx%d=%d\n", i, j, i*j);
		}
	}
	return 0;
}

C++: #include<iostream>
using namespace std;

int main(){
	for(int i = 1; i <= 9; i++)
	{
		for(int j = 1; j <= 9; j++)
		{
			cout << i << "x" << j << "=" << i*j << endl;
		}
	}
    return 0;
}

C++: #include <iostream>
#include <string>
using namespace std;

int main(){
int a=1,b=1,c;
while(a != 9 or b != 9){
	c = a*b;
	cout<<a<<"x"<<b<<"="<<c<<endl;
	if(b == 9){
		a++;
		b = 1;
	}else{
	b++;		
	}


}





}

C++: #include <iostream>

static void printQq();
static const int Start = 1;
static const int End = 9;

int main(int /* argc */, char **/* argv */)
{
    printQq();

    return 0;
}

static void printQq()
{
    for (int i = Start; i <= End; ++i) {
       for (int j = Start; j <= End; ++j ) {
           std::cout << i << "x" << j << "=" << i * j << std::endl;
       }
    }
}

C++: b;main(a){for(;a-10;b%=9||a++)printf("%dx%d=%d\n",a,++b,a*b+b);}

C++: #include <cstdio>

int main(){
  for(int i=1;i<=9;i++)
    for(int j=1;j<=9;j++)
      printf("%dx%d=%d\n", i, j, i*j);
}

C++: #include<cstdio>

int main()
{
    for (int i = 1; i <= 9; i++)
    {
        for(int j = 1; j <= 9; j++)
        {
            printf("%dx%d=%d\n", i, j, i*j);
        }
    }
    return 0;
}

C++: #include <iostream>

int main(){
	for(int i=1;i<10;++i){
		for(int j=1;j<10;++j){
			std::cout<<i<<'x'<<j<<'='<<i*j<<"\n";
		}
	}
	return 0;
}

C++: #include <bits/stdc++.h>

using namespace std;

int main(){
	for(int i = 1; i <= 9; i++){
		for(int j = 1; j <= 9; j++){
			printf("%dx%d=%d\n", i, j, i * j);
		}
	}
	return 0;
}

C++: #include <iostream>
using namespace std;

int main()
{
     int i, j;

     for(i = 1; i < 10; i++)
         for(j = 1; j < 10; j++)
             cout << i << 'x' << j << '=' << i*j << endl;

     return 0;
}

C++: #include<bits/stdc++.h>
using namespace std;

typedef long long int ll;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<pair<int, int> > vii;
#define rrep(i, m, n) for(int (i)=(m); (i)<(n);  (i)++)
#define erep(i, m, n) for(int (i)=(m); (i)<=(n); (i)++)
#define  rep(i, n)    for(int (i)=0; (i)<(n);  (i)++)
#define  rev(i, n)    for(int (i)=(n)-1; (i)>=0; (i)--)
#define vrep(i, c)    for(__typeof((c).begin())i=(c).begin(); i!=(c).end(); i++)
#define  ALL(v)       (v).begin(), (v).end()
#define mp            make_pair
#define pb            push_back
template<class T1, class T2> inline void minup(T1& m, T2 x){ if(m>x) m=static_cast<T2>(x); }
template<class T1, class T2> inline void maxup(T1& m, T2 x){ if(m<x) m=static_cast<T2>(x); }

#define INF 1000000000
#define MOD 1000000009
#define EPS 1E-9

int main()
{
  erep(i, 1, 9) erep(j, 1, 9) cout << i << "x" << j << "=" << i * j << endl;

  return 0;
}

C++: #include<stdio.h>

int main()
{
	int i, j;
	for(i = 1; i <= 9; i++)
	{
		for(j = 1; j <= 9; j++)
		{
			printf("%dx%d=%d\n",i,j,i*j);
		}
	}
}

C++: #include<iostream>
#include<cstdio>
#include<vector>
#include<algorithm>
#include<cmath>
#include<queue>
#include<stack>
#include<functional>
using namespace std;

int main(){
    for(int i=1;i<=9;i++){
		for(int j=1;j<=9;j++){
			printf("%dx%d=%d\n",i,j,i*j);
		}
	}
    return 0;
}

C++: #include<bits/stdc++.h>
using namespace std;

int main(){
	long double d=1111.11111111111111111111111111111111111111111111111;
	printf("%.1145141919lf\n",d);
}

C++: #include<bits/stdc++.h>
using namespace std;
int main()
{
    int i,j,k;
    for(i=1;i<=9;i++)
    {
        for(j=1;j<=9;j++)
        {
            cout<<i<<"*"<<j<<"="<<i*j<<endl;
        }
    }
}