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 <stdio.h>
int main()
{
int i;
int j;
for(i=1;i<=9;i++)
{
for(j=1;j<=9;j++)
{
printf("%dx%d=%dn",i,j,i*j);
}
}
return 0;
}

C++: #include<iostream>
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(int i=1;i<=9;i++)
    for(int j=1;j<=9;j++)
      cout<<i<<"x"<<j<<"="<<i*j<<endl;

  return 0;
}

C++: gs

C++: #include <iostream>
usnig 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++: null

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

C++: #include <cstdio>
#include <iostream>
#define loop(var) for(int var=1;var<10;++var)

int main()
{
    loop(x) loop(y) printf("%dx%d=%d\n",x,y,x*y);
}

C++: #include<cstdio>
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++){
cout << i << "x" << i << "=" << i * i << endl;
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 <cstdio>
#include <quadmath.h>
using namespace std;

int main(){
	__float128 a = 1.23456789123456789123456789Q;
	printf("%d\n", int(sizeof(__float128))*8);
	printf("%.10f\n", double(M_PIq));
}

C++:  #include <cstdio>
  2 int main(){
  3     for(int i=1;i<10;i++){
  4         for(int j=1;j<10;j++){
  5             printf("%dx%d=%d\n",i,j,i*j);
  6         }
  7     }
  8     return 0;
  9 }
 10 
 11

C++: #include <cstdio>

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(void){
        for(int a=1;a>=9;a++){
                cout<<a<<"??";
                for(int b=1;b>=9;b++){
                        cout<<b<<"="<<a*b<<endl;
                }
        }
        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 + 1 << "x" << j + 1 << "=" << (i+1)*(j+1)<<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;
}