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++: #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 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 namespace std;

int main(){

int i,j,p;

for(i=1; i<10; i++){
  for(j=1; j<10; j++){
    p=i*j;
    cout << i << "x" <<j << "=" << p <<"\n";
  }
}

    return 0;
}

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

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

C++: i = range(1,10)
for  i in ['%dx%d=%d' % (x,y,x*y) for x in i for y in i]:
    print i

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 val=0;
for(int i=1;i<=9;i++){
for(int j=1;j<=9;j++){
if(i>=j)
cout << i << "x" << j << "="<<i*j<<std::endl;
else
break;
}
}
    return 0;
}

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

int main(){
    
    for (int j=1; j<=9; j++){
        for(int i=1; i<=9; i++){
                
                cout << i << "x" << j << "=" << i*j << 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++: !

C++: #include <bits/stdc++.h>
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<10;i++){
        for(int j=1;j<10;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;
		}
	}
	return 0;
}

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

int main() {
    for(int r = 1; r <= 9; r++) {
        for(int c = 1; c <= 9; c++) {
            cout << r << "×" << c << "=" << r * c << endl;
        }
    }
    
    return(0);
}

C++: #include<iostream>
#include<cstdio>
#include<cstring>
#include<algorithm>
#include<cmath>
#include<cstdlib>
using namespace std;
#ifdef __int64
typedef __int64 LL;
//#else
//typedef long long LL;
#endif
//typedef double db;
//const int N = 200015;
//const int INF = ~0u>>2;
//char s[N],str[2*N];
//int len[2*N];
//inline int manager(){
//    int i;
//    str[0] = '$';
//    for(i = 0;; i ++){
//        str[2*i+1] = '#',str[2*i+2] = s[i];
//        if(!s[i]) break;
//    }
//    int id,mx = 0;
//    for(i = 1;str[i]; i ++){
//        if(mx>i) len[i] = min(len[2*id-i],mx-i);
//        else len[i] = 1;
//        while(str[i-len[i]]==str[i+len[i]]) len[i] ++;
//        if(i+len[i] > mx){
//            mx = i + len[i];
//            id = i;
//        }
//    }
//    mx = 0;
//    for(int i = 1;str[i];i++) if(mx < len[i]) mx = len[i];
//    return mx - 1;
//}
int main()
{
    //freopen("input.in","r",stdin);
    //freopen("output.out","w",stdout);
//    while(~scanf("%s",s))
//    {
//        printf("%d\n",manager());
//    }

    for(LL i=1;i<=9;i++)
        for(LL 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++){
            int mul=i*j;
            cout << i << "x" << j << "=" << mul << endl;
        }
    }
}

C++: #include <bits/stdc++.h>
using namespace std;

int main() {
    
    // 1. input.
    
    // 2. output answer.
    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 a=1;a <= 9;a++) cout <<a<<"x"<<a<<=<<(a*a)<<endl;

    return 0;
}

C++: #include<stdio.h>

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

    return 0;
}

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