Go: package main

import "fmt"

func main() {
        for i := 1; i < 10; i++ {
                for j := 1; j < 10; j++ {
                        fmt.Printf("%dx%d=%d\n", i, j, i*j)
                }
        }
}

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

int main(){
    int i,j,k;
    for(i=1;i<=9;i++){
        for(j=1;j<=9;j++){
            cout << i << "x" << j << "=" << i*j << endl;
        }
    }
    return 0;
}

C++: int main(){

for (int i = 1; i <= 9; i++) {

			for (int j = 1; j <= 9; j++) {

				int re = i * j;



			}
		}

    return 0;
}

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

int main()
{
 int x,y,z;
 for(int i=0; i<9; i++)
 {
  for(int j=0; j<9; j++)
   {
     cout<<i<<"x"<<j;
    }
}
return 0;
}

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

#define REP(i, x) for (int i = 0; i < (int)(x); i++)
#define REPS(i, x) for (int i = 1; i <= (int)(x); i++)

int main(int argc, char *argv[])
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);

    REPS(i, 9)
    {
        REPS(j, 9)
        {
            cout << i << "x" << j << "=" << i * j << 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 << '×' << j+1 << '=' << (i+1)*(j+1) << endl;
}
}
 
return 0;
}

C++: #include<stdio.h>
char 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<stdio.h>
int main(void)
{
    int i,n,a;
	a=0;
	
	for(i=1;i<10;i++){
	    for(n=1;n<10;n++){
		    a=i*n;
			printf("%dx%d=%d\n",i,n,a);
		}
	}
	return 0;
}

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

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

C++: #include <bits/stdc++.h>
#define SORT(a) sort(a.begin(), a.end())
#define RSORT(a) sort(a.rbegin(), a.rend())
#define REP(i, n) for (int i = 0; i < n; i++)
#define RREP(i, n) for (int i = n - 1; 0 <= i; i--)
#define FOR(i, start, end) for (int i = start; i < end; i++)
#define RFOR(i, start, end) for (int i = start - 1; 0 <= i; i--)
#define ALL(a) a.begin(), a.end()
using ll = long long;
using namespace std;
constexpr int INF32       = 1'050'000'000;
constexpr long long INF64 = 4'000'000'000'000'000'000;
constexpr int MOD7        = 1'000'000'007;
constexpr int MOD9        = 1'000'000'009;
template <class T> inline bool chmin(T &a, T b) {
    if (a > b) {
        a = b;
        return true;
    }
    return false;
}
template <class T> inline bool chmax(T &a, T b) {
    if (a < b) {
        a = b;
        return true;
    }
    return false;
}
void print() { std::cout << '\n'; }
template <class H, class... T> void print(H &&head, T &&... args) {
    std::cout << head;
    sizeof...(args) == 0 ? std::cout << "" : std::cout << ' ';
    print(std::forward<T>(args)...);
}
template <class T> void print(std::vector<T> &v) {
    for (int i = 0; i < v.size(); i++) {
        std::cout << v[i];
        i == v.size() - 1 ? std::cout << '\n' : std::cout << ' ';
    }
}
template <class T> void print(std::vector<std::vector<T>> &v) {
    for (int i = 0; i < v.size(); i++) {
        for (int j = 0; j < v[i].size(); j++) {
            std::cout << v[i][j];
            j == v[i].size() - 1 ? std::cout << '\n' : std::cout << ' ';
        }
    }
}
void scan() {}
template <class H, class... T> void scan(H &&head, T &&... args) {
    std::cin >> head;
    scan(std::forward<T>(args)...);
}
template <class T> void scan(std::vector<T> &v) {
    for (auto &&i : v) {
        scan(i);
    }
}

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);

    REP(i, 9) {
        int x = i + 1;
        REP(j, 9) {
            int y = j + 1;
            cout << x << "x" << y << "=" << x * y << 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++: #include<iostream>
#include<string>
#include<algorithm>
#include<vector>
#include<cstdio>
#include<cstring>
using namespace std;

#define rep(i,n) for(int i=0;i<n;i++)
#define REP(n) rep(i,n)
#define all(n) n.begin(),n.end()

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 a = 1; a >= 10; a ++)
    for(int b = 1; b <= 9; b ++)
      cout << a << "x" << b << "="  << endl;


  return 0;
}

C++: #include <iostream>
#include <assert.h>
#include <list>
#include <algorithm>
#include <vector>
#include <cmath>

void ff( std::list< std::vector< std::string > > & c )
{
    // ??¢???
    std::for_each( c.begin(), c.end(),
        []( std::vector< std::string> & elem )
        { }
    ) ;

    // ?°????
    std::for_each( c.begin(), c.end(),
        []( auto & elem )
        {  }
    ) ;
}

template < typename Printer >
void f( Printer && p )
{
    p( 123 ) ;
    p( 1.23 ) ;
    p( "123" ) ;
}


void operator delete( void *, std::size_t ) noexcept ;
void operator delete[]( void *, std::size_t ) noexcept ;

template < typename T >
constexpr T sqrt( T s )
{
    T x = s / 2.0 ; // ??????????????????
    T prev = 0.0 ;

    while ( x != prev )
    { // ???????????????????????????????????§????????????2?????°?????????
        prev = x ;
        x = (x + s / x ) / 2.0 ; // ????????????2
    }
    return x ;
}


// 1927426???1927428???WA???????????????????????????????????§???
auto dodo() {

  assert(std::abs(sqrt(2.0) - std::sqrt(2)) < 1e-9);

    f( []( auto && elem ){ assert(1 && elem) ; } ) ;
  auto x = 0b101;
  assert(x == 5);
  auto k = 1.2'3'4'5'6'789;
  assert(![ x = 0 ](){ return x ; }()) ;

  auto f = []( auto x ) { return x ; } ;

  f( 0 ) ;
  f( 0.0 ) ;
  f( 'A' ) ;
  f( "hello" ) ;

  int i = 10;
  decltype(auto) a = i ;



  assert(1.23456789==k);
  for(auto i=0; i<9; i++)
    for(auto j=0; j<9; j++)
      std::cout << i+1 << 'x' << j+1 << '=' << (i+1)*(j+1) << std::endl;
}

int main() {
  dodo();
  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;

#define QQ_LIMIT 9


int main(void){

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

  return 0;
}

C++: int main() {

C++: #include<iostream>

int main(){
	int a,b;
	for(a=1;a<=9;a++){
		for(b=1;b<=9;b++){
			std::cout<<a<<"x"<<b<<"="<<a*b<<std::endl;
			}
		}
	system("pause");
    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 j = 1; j < 10; j++)
for(int i = 1; i < 10; i++)
cout << j << 'x' << i << '=' << j+i << endl;
}

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

int main(int argc, char* argv[]) {
  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;
	
	for(i=1;i<10;i++){
		for(j=1;j<10;j++){
	cout << i << " x " << j << " = " << i * j << "\n" << 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<<"="<<endl;
}
}
    return 0;
}