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 <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(int argc, const char * argv[])
{

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

C++: #include <iostream>
#include <stdio.h>

int i = 1;

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

C++: #include <iostream>

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

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

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

C++: i, j;main(){for(;i++<9;)for(j=1;j<=9;)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++: null

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

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++: class Main{
    public static void main(String[] a){
         for(int i =1; i<10; i++){
             for(int j=1; j<10; j++){
                  System.out.println(i+"x"+j+"="+(i*j));
             }
         }
         
    }
}

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

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<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++: //============================================================================
// Name        : Manji.cpp
// Author      :
// Version     :
// Copyright   : Your copyright notice
// Description : Hello World in C++, Ansi-style
//============================================================================

#include <iostream>
#include <stdio.h>
#include <string>
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(void) {
    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<cstdio>
#include<cstring>
#define MAXN 10000000
int vis[MAXN];
int main() {
	int a, b, x, y, t;
	while (~scanf("%d%d", &a, &b)) {
		memset(vis, 0, sizeof(vis));
		a -= a / b * b;
		x = y = 0;
		while (a < b) {
			a *= 10;
			x++;
		}
		for (; a;) {
			a %= b;
			if (a == 0)
				break;
			while (a < b) {
				a *= 10;
				x++;
			}
			if (vis[a])
				break;
			else
				vis[a] = x;
		}
		printf("%d %d\n", vis[a], x - vis[a]);
	}
	return 0;
}

C++: int main(){int i,j,k;for(i=0;i<81,j=i/9+1,k=i%9+1;i++)printf("%dx%d=%d\n",j,k,j*k);}

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 <cstdio>


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

	return 0;
}