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<stdin.h>
using namespace std;

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

C++: #include<stdio.h>

int main(void){
	int a,b,c;
	for(a=1;a<=9;a++){
		for(b=1;b<=9;b++){
			c=a*b;
			printf("%dx%d=%d,a,b,c);
		}
	}

    return 0;
}

C++: #include<stdio.h>

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

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;
            if(i * j != 81){
                cout <<endl;
            }
        }
    }
    return 0;
}

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

C++: #include<iostream>

using namespace std;

int main(void){
  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++: #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(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 <iostream>
using namespase std;

int main(){


for(int i=1;i<=9;i++){
 for(int j=1;j<=9;j++){
cout <<ixj=i*j;
 }
}

return 0;
}

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

int main()
{
	int a;
	int b;
	for (a=1,a<10,a++) {
		for (b=1,b<10,b++) {
			cout << a << "x" << b << "=" << a*b << endl;
		}
	}
	return 0;
}

C++: #include <cstdio>
#define rep1(i,x) for(int i=1;i<=x;++i)
int main()
{
rep1(i,9)rep1(j,9)printf("%dx%d=%d",i,j,i*j);
}