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>
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++: using System;


namespace _0000
{
	class Program
	{
		static int Main ( string[] args )
		{
			for (int lp = 1; lp <= 9; lp++)
			{
				for (int lp2 = 1; lp2 <= 9; lp2++)
				{
					Console.WriteLine (lp + "x" + lp2 + "=" + (lp * lp2));
				}
			}


			return 0;
		}
	}
}

C++: #include <iostream>
using namespace std;
int main(void){
    // Your code here!
    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<stdio.h>

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 <stdio.h>
 
int
main(void)
{
    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<cstdio>
int main()
{
	printf("1x1=1\n1x2=2\n.\n.\n9x8=72\n9x9=81\n");
	return 0;
}

C++: #include <iostream>
#include <stdio.h>
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(){
    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(int argc, char* argv[])
{
	int a[9]={0},i;
	for(i=0;i<9;i++)
	{
		a[i]=i+1;
	}
	for(i=0;i<9;i++)
	{
		cout<<i+1<<"*"<<i+1<<"="<<a[i]*a[i]<<'\n';
	}
	return 0;
}

C++: object Main {
  def main(args: Array[String]): Unit = {
    for (i <- 1 to 9; j <- 1 to 9)
      println(i + "x" + j + "=" + i * j)
  }
}

C++: //AOJ 0000
//include
#include<cstdio>
#include<cctype>
#include<cstring>
#include<cstdlib>
#include<algorithm>
#include<stack>
#include<queue>
#include<deque>
#include<vector>
#include<list>
#include<bitset>
#include<set>
#include<iostream>
 
//using namespace
using namespace std;
 
//define
 
//variable
short a, b;
 
//function
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++: a

C++: #include<stdio.h>
using namespace std;

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

C++: #include <stdio.h>

int main(int argc, char *argv[]) {
    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(){
	for(int i=1;i<=9;i++){
	for(int j=1;j<=9;j++){
	cout<<i<<"x"<<j<<"="<<i*j<<std::endl;
	}
	}
	return 0;
}

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

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

C++: #include<iostream>
//#include<math.h>
using namespace std;
int main()
{	
	for (int i = 1; i <= 9; i++) {
		for (int j = 1; j <= 9; j++) {
			cout << i << '×' << j << '=' << i*j << endl;
		}
	}
	return 0;
}

C++: #include <cstdio>
#include <iostream>

using namespace std;

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

C++: #include <iostream>
#include <stdio.h>
#include <math.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 <cstdio>
#include <cstdlib>
#include <cmath>
#include <climits>
#include <cfloat>
#include <cstring>
#include <map>
#include <utility>
#include <set>
#include <iostream>
#include <memory>
#include <string>
#include <vector>
#include <algorithm>
#include <functional>
#include <sstream>
#include <fstream>
#include <complex>
#include <stack>
#include <queue>

using namespace std;
typedef long long LL;
typedef pair<int, int> PII;
static const double EPS = 1e-5;

#define FOR(i,k,n) for (int i=(k); i<(int)(n); ++i)
#define REP(i,n) FOR(i,0,n)
inline int mal(int x,int y){
  return x*y;
}
int main(void){
  FOR(i,1,10)FOR(j,1,10){
    printf("%dx%d=%d\n",i,j,mal(i,j));
  }
  return 0;
}

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

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;
        }
    }

    return 0;
}

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

C++: /*
C++ ???????????????????????????????????¬??????
??????AOJ-ITP1??????????????????
*/

#include <iostream> // ?¨??????\??????

using std::cout;
using std::endl;

int main() {
	int row = 9;	// ???
	int col = 9;	// ???
	for (size_t i = 1; i <= row; i++)
	{
		for (size_t j = 1; j <= col; j++)
		{
			cout << i << "??" << j << "=" << i*j << endl;
		}
	}
	return 0;
}

C++: #include<iostream>
#include <stdio.h>
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(){

	int a=0;
	int b=0;

	for(int count=0;count<81;count++)
	{
		a++;
		if(0==a%10){a=1;}

		if(a==1)
		{
			b++;
			if(0==b%10){b=1;}
		}
	cout<<b<<"x"<<a<<"="<<a*b<<endl;
	}
    return 0;
}