Go: package main

import "fmt"
import "strconv"

func main() {
  for i := 1; i <= 9; i++ {
    for j := 1; j <= 9; j++ {
      res := i * j
      fmt.Println(strconv.Itoa(i) + "x" + strconv.Itoa(j) + "=" + strconv.Itoa(res))
    }
  }
}

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

#define FOR(i,l,r) for(int i = (l);i < (r);i++)
#define ALL(x) (x).begin(),(x).end()
template<typename T> bool chmax(T& a,const T& b){return a < b ? (a = b,true) : false;}
template<typename T> bool chmin(T& a,const T& b){return b < a ? (a = b,true) : false;}
typedef long long ll;

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++: #include<cstdio>
main(){for(int i,j;i++>8?i=j++<9:1;)printf("%dx%d=%d\n",j,i,i*j);}

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

int main(){
int a = 1,b = 1,c;
while(a != 9 and b != 9){
c=a*b;
cout<<a<<"x"<<b<<"="c<<endl;
b++;
if(b == 10){
a++;
b = 1;
}

}
    return 0;
}

C++: #include <studio.h>

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

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

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

C++: #include<stdio.h>
#include<iostream>
using namespace std;
int main()
{
    int i,j,c;
    for(i=1;i<10;i++)
    {
        for(j=1;j<10;j++)
        {
            c=i*j;
            printf("%d*%d=%d\n",i,j,c);
        }
    }
    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++){
			std::cout << i<<"x"<<j<<"="<< i*j << endl;
		}
	}

	return 0;
}

C++: #include<cstdio>
main()
{
for(int i = 1; i < 10; ++i){
for(int j = 1; j < 10; ++j){
printf("%dx%d=%d\n", i,j,i*j-1);
}
}
return 0;
}

C++: import java.util.*;
import java.lang.*;
import java.math.*;

class main {
    
    void run() {
        for (int i=1;i<10;i++) {
            for (int j=1;j<10;j++) 
                System.out.println( i + "x" + j + "+"  + i*j);
        return;
    }
    
    public static void main(String[] args) {
       new main().run();
    }
}

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

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

C++: #include<iostream>
using namespace std;
int main()
{
	int i,k;
	for(i=1;i<10;i++)
		for(k=1;k<10;k++)
			{
				cout<<i<<"x"<<k<<"="<<i*k<<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 << "\n";
        }
    }

    return 0;
}

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

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

	return 0;
}

C++: j;main(i){for(;i<=9;i++){for(j=1;j<=9;j++){printf("%dx%d=%d\n",i,j,i*j);}}exit(0);}

C++: #include <iostream>
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>
const int N = 9;

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

    return 0;
}

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

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

C++: #include<iostream>
 
using namespace std;
void a(string s[11]){
	return ;
}
int main(){
	string s[4];
	a(s);
    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 <iomanip>
#include <string>
#include <algorithm>
#include <math.h>
#include <time.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;
		}
	}
	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 <stdio.h>

int main(){
    int num1, num2;

    for (num1=1;num1<10;num1++) {
        for (num2=1; num2<10; num2++) {
            printf("%dx%d=%d\n", num1, num2, num1*num2);
        }
    }

    return(0);
}

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

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

C++: #include <bits/stdc++.h>
#define rep(i,n) for(long long int i = 0; i < n; i++)
#define print(n) std::cout << n << std::endl
#define _print(n) std::cout << n
using namespace std;
typedef long long ll;
const int N = 1000000;

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;
}