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
	while(1){}
	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 << 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++) {
            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++) {
      cout << i << 'x' << j << '=' << i*j << endl;
    }
  }
  return 0;
}

C++: #include <stdio.h>

int main(void)
{
	int i, j;
	
	for (i = 1; i <= 9; i++){
		for (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 << endl;
    }
  }
  return 0;
}

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

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

    return 0;
}

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

int main(void){

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

}

C++: 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>
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 <= 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 i = 1; i <= 9; i++)
		for (int j = 1; j <= 9; j++)
			std::printf("%dx%d=%d\n", i, j, i * j);

	return (0);
}

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

int main(){
for(int f1=1;f1<10;f1++){
    for(int f2=1;f2<10;f2++){
        printf("%dx%d=%d\n",f1,f2,f1*f2);
}
}
    return 0;
}

C++: #include<stdio.h>
int main(){
     int a,b;
     for(a=1;a<10;a++){
          b=a*a;
          printf("%d*%d=%d",a,a,b);
     }
     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(){
    for(int i=1;i<=9;i++)
        for(int j=1;j<=9;j++)
            cout<<i<<"x"<<j<<"="<<i*j<<endl;
    
    return 0;
}

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

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

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

C++: #include<stdio.h>
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 <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;
}