Go: package main

import (
	"fmt"
	"strconv"
)

func main() {
	for _, leftValue := range MultiplicationTableNum(9) {
		for _, rightValue := range MultiplicationTableNum(9) {
			strLeftVal, strRightVal, strMulti := strconv.Itoa(leftValue), strconv.Itoa(rightValue), strconv.Itoa(Multiplication(leftValue, rightValue))
			fmt.Println(strLeftVal + "x" + strRightVal + "=" + strMulti)
		}
	}
}

func MultiplicationTableNum(num int) []int {
	multiNum := []int{}
	for i := 1; i <= num; i++ {
		multiNum = append(multiNum, i)
	}
	return multiNum
}

func Multiplication(x, y int) int {
	return x * y
}

C++: #include <iostream>
#include <stdio.h>
#include <string>
#include <math.h>
#include <algorithm>
using namespace std;
int main(){
 int i, j;
 for(i = 1;i < 10;i++){
  for(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 <bits/stdc++.h>

using namespace std;

int array[64][1024][1024];
#define rep(i, v) for (int i = 0; i < v; i++)
int main()
{
        int N;

        scanf("%d", &N);
        rep(i, 64) rep(j, 1024) rep(k, 1024) array[i][j][k] = i * j * k;
        for (int i = 0; i < N; i++) printf("A\n");

        return (0);
}

C++: source

C++: #include<iostream>
#include<cstdlib>
#include<cstring>
#include<stack>
#include<queue>
#include<algorithm>
#include<vector>
#include<math.h>
#include<bitset>
using namespace std;

typedef stack<int> IntStack;
typedef queue<int> IntQueue;

/*ここまでテンプレ*//*ここまでテンプレ*//*ここまでテンプレ*//*ここまでテンプレ*/



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>
int main(void)
{
    for(int i=1;i <= 9; ++i){
        for(int j=1; j <= 9; ++j){
            std::cout << i << "x" << j << "=" << i * j << std::endl;
        }
    }
    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(){

	printf("1x1=1\n");
	printf("1x2=2\n");
	printf(".\n"); 
	printf(".\n");
	printf("9x8=72\n");
	printf("9x9=81\n");

	return 0;
}

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

C++: #include<iostream>
#include<cstdio>
#include<algorithm>
#include<climits>
#include<string>
#include<vector>
#include<list>
#include<map>
#include<set>
#include<cmath>
#include<queue>
#include<cstring>
using namespace std;

signed main(){
    return 0;
}

C++: #include<iostream>
int main(){
	for(int i=1; i<=9;++i)
		for(int j=1;j<=9;++j)
			std::cout<<i<<'x'<<j<<'='<<i*j<<std::endl;
	
	return 0;
}

C++: #include <iostream>

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

C++: #include <bits/stdc++.h>
using namespace std;
int a, b;
int main(){
	for(a=1;a<=9;a++)
		for(b=1;b<=9;b++)
			printf("%dx%d=%d\n",a,b,a*b);
	return 0;
}

C++: #include<stdio.h>
int main()
{
    for(int i=1;i<=9;i++)
        for(int j=1;j<=9;j++)
        {
            printf("%d * %d = %d\n",i,j,i*j);
        }
    return 0;
}

C++: #include <stdio.h>
int main(){
for(int i=1;i<10;i++){
for(int j=1;j<10;j++){
printf("%d*%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 = 1; i <= 9; i++){
    for (int j = 1; j <= 9; j++){
      printf("%dx%d=%d\n",i,j,i*j);
    }
  }
}

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>
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>
#include <cstdio>
 
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++: output = function() {
	console.log.apply( console, arguments );
};

(function kuku( a, b ) {
	if ( a > 9 )
		return;
	if ( b > 9 )
		return kuku( a + 1, 0 );
	output( '%dx%d=%d', a, b, a * b );
	return kuku( a, b + 1 );
})( 1, 1 );