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 <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<iostream>
using namespace std;

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(){
1*1;
1*2;


    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 << "\n";

    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++: #pragma GCC optimize "O3"
#include <vector>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <cctype>
#include <string>
#include <cstring>
#include <ctime>
#define whole(f,x,...) ([&](decltype((x)) whole) { return (f)(begin(whole), end(whole), ## __VA_ARGS__); })(x)
#define ALL(a)  (a).begin(),(a).end()
#define RALL(a) (a).rbegin(), (a).rend()
#define PB push_back
#define MP make_pair
#define SZ(a) int((a).size())
#define EACH(i,c) for(typeof((c).begin()) i=(c).begin(); i!=(c).end(); ++i)
#define EXIST(s,e) ((s).find(e)!=(s).end())
#define SORT(c) sort((c).begin(),(c).end())
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n)  FOR(i,0,n)
#define REP_FROM(i,m,n) for (int i = (m); (i) < int(n); ++(i))
#define REP_REV(i,n) for (int i = (n)-1; (i) >= 0; --(i))
#define REP_FROMREV(i,m,n) for (int i = (n)-1; (i) >= int(m); --(i))
#define CLR(a) memset((a), 0 ,sizeof(a))
#define dump(x)  cerr << #x << " = " << (x) << endl;
#define debug(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FILE__ << endl;
#ifndef LOCAL
#define cerr if (false) cerr
#endif
using namespace std;
inline int toInt(string s) {int v; istringstream sin(s);sin>>v;return v;}
template<class T> inline string toString(T x) {ostringstream sout;sout<<x;return sout.str();}
template<class T> inline T sqr(T x) {return x*x;}
typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<string> VS;
typedef pair<int, int> PII;
typedef long long LL;

template <class T> inline void setmax(T & a, T const & b) { a = max(a, b); }
template <class T> inline void setmin(T & a, T const & b) { a = min(a, b); }
template <class T> T sq(T x) { return x * x; }
template <class T> T clamp(T a, T l, T r) { return min(max(a, l), r); } // [l, r]
const double EPS = 1e-10;
const double PI  = acos(-1.0);

int main(int argc, char *argv[]) {
	// Something to do
	FOR(i, 1, 10)
		FOR(j, 1, 10)
			cout << i << "x" << j << "=" << i*j << endl;
	return 0;
}

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

int main() {
	int i; //x*y???x??¨?????¨
	int k; //x*y???y??¨?????¨
	int seki = 0; //?????¨?????¨
	
	for(i=1;i<=9;i++){
		for(k=1;k<=9;k++){
			seki = i * k; 
			std::cout << i;
			std::cout << "x";
			std::cout << k;
			std::cout << "=";
			std::cout << seki;
			std::cout << "\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;
		}
	}
	return 0;
}

C++: #include<stdio.h>

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

C++: a

C++: <?php

    for($i = 1; $i <= 9; $i++){
        for($j = 1; $j <= 9; $j++){
            echo $i."x".$j."=".$i * $j."\n";
        }
    }

?>

C++: #include<iostream>

using namespace std;

int main(){

  int a,b;

  for(a=1;a<10;a++){

    for(b=1;b<10;b++){
      cout <<a<<"??"<<b<<"="<<a*b<<endl;
    }
  }


  return 0;
}

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

int main(){
   int i;
    for(int x=1;x<10;x++){
    i=i*i
    cout << i;  
}
    return 0;
}

C++: #include<iostream>

using namespace std;

main(){

}

C++: #include <stdio.h>

using namespace std;


int main(){

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

    return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;
auto solve()
-> void
{
for(int i=1; i<10; i++)
for(int j=1;j<10; j++)
cout << i << "x" << j << "=" << i*j << endl;
}
int main() {
solve();
return 0;
}

C++: class qq{
		public static void main(String a) {
				for(int i = 1;i<10;i++){
						for(int j = 1 ;j<10;j++){
								int k = i *j;
								System.out.printf("%d x %d = %d\n",i,j,k);
						}
				}
		}
}

C++: class Main{
    public static void main(String[] a){
          for(int a=1;a<=9;a++) {
              for(int b=1;b <= 9;b++) {
                System.out.println(a + "x" + b + "=" + a*b);
    }
}

C++: #include<stdio.h>
int main(void)
{
	printf("1x1=1\n1x2=2\n1x3=3\n1x4=4\n1x5=5\n1x6=6\n1x7=7\n1x8=8\n1x9=9\n2x1=2\n2x2=4\n2x3=6\n2x4=8\n2x5=10\n2x6=12\n2x7=14\n2x8=16\n2x9=18\n3x1=3\n3x2=6\n3x3=9\n3x4=12\n3x5=15\n3x6=18\n3x7=21\n3x8=24\n3x9=27\n4x1=4\n4x2=8\n4x3=12\n4x4=16\n4x5=20\n4x6=24\n4x7=28\n4x8=32\n4x9=36\n5x1=5\n5x2=10\n5x3=15\n5x4=20\n5x5=25\n5x6=30\n5x7=35\n5x8=40\n5x9=45\n6x1=6\n6x2=12\n6x3=18\n6x4=24\n6x5=30\n6x6=36\n6x7=42\n6x8=48\n6x9=54\n7x1=7\n7x2=14\n7x3=21\n7x4=28\n7x5=35\n7x6=42\n7x7=49\n7x8=56\n7x9=63\n8x1=8\n8x2=16\n8x3=24\n8x4=32\n8x5=40\n8x6=48\n8x7=56\n8x8=64\n8x9=72\n9x1=9\n9x2=18\n9x3=27\n9x4=36\n9x5=45\n9x6=54\n9x7=63\n9x8=72\n9x9=81\n");
	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(){

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

    return 0;
}

C++: #include<iostream>
using std::cout;
using std::endl;

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

C++: #include <iostream>
int main(){
    for (int i =1;i<10;i++){
        for (int j = 1;j<10;j++){
            cout << i << "x" << j << "=" << i*j << endl;
        }
    }
    return 0;
}

C++: #include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <sstream>

using namespace std;

int main()
{
	vector<string> sv;
	for (int i = 1; i <= 9; i++){
		for (int j = 1; j <= 9; j++){
			stringstream ss;
			ss << i << 'x' << j << '=' << i*j << '\n';
			string temp = ss.str();
			sv.push_back(temp);
		}
	}

	//sv.back().erase(sv.back().find('\n'));

	for_each(sv.begin(), sv.end() ,
		[](string tmp){
		cout << tmp;
		}
	);

	getchar();
}

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;
}