Go: // 九九を出すだけ
package main
import (
	"fmt"
	"os"
	"bufio"
)
var out = bufio.NewWriter(os.Stdout)

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

C++: #include<cstdio>
#include<cstring>
#define MAXN 10000000
int vis[MAXN];
int main() {
	int a, b, x, y, t;
	while (~scanf("%d%d", &a, &b)) {
		memset(vis, 0, sizeof(vis));
		a -= a / b * b;
		x = y = 0;
		while (a < b) {
			a *= 10;
			x++;
		}
		for (; a;) {
			a %= b;
			if (a == 0)
				break;
			while (a < b) {
				a *= 10;
				x++;
			}
			if (vis[a])
				break;
			else
				vis[a] = x;
		}
		printf("%d %d\n", vis[a], x - vis[a]);
	}
	return 0;
}

C++: int main(){int i,j,k;for(i=0;i<81,j=i/9+1,k=i%9+1;i++)printf("%dx%d=%d\n",j,k,j*k);}

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>


int main()
{
	for (int x = 1; x <= 9; ++x) {
		for (int y = 1; y <= 9; ++y) {
			std::printf("%dx%d=%d\n", x, y, x * y);
		}
	}

	return 0;
}

C++: #include<cstring>
#include<cstdio>
#include<iostream>
#include<algorithm>
#include<vector>
#include<string>
#include<queue>

#define ll long long
using namespace std;

char s[4][505][505];
int dx[]={-1,0,1,0};
int dy[]={0,1,0,-1};
int dist[4][505][505];
int cnt[4][505][505];
int n;
void change(int x){
    for(int i=0; i<n; i++){
        for(int j=0; j<n; j++){
            if(s[x-1][i][j]=='N'){
                s[x][i][j]='E';
            }
            else if(s[x-1][i][j]=='E'){
                s[x][i][j]='S';
            }
            else if(s[x-1][i][j]=='S'){
                s[x][i][j]='W';
            }
            else if(s[x-1][i][j]=='W'){
                s[x][i][j]='N';
            }
            else s[x][i][j]=s[x-1][i][j];
        }
    }
}

inline bool judge(int m, int x, int y){
    if(x<0||x>=n||y<0||y>=n) return false;
    if(s[m][x][y]=='#') return false;
    return true;
}

void change2(int dir, int m, int x, int y){
    if(judge(m,x,y)){
        s[m][x][y]='x';
        x = x + dx[dir];
        y = y + dy[dir];
    }
    if(judge(m,x,y)){
        s[m][x][y]='x';
    }
}
pair<int,int> Start, End;
struct State{
    pair<int,int> here;
    int step;
    State(pair<int,int> here, int step):here(here),step(step){}
    bool operator > (const State &r) const {
        return step>r.step;
    }
};
priority_queue<State,vector<State>,greater<State> > q;
int bfs(){
    while(!q.empty()) q.pop();
    memset(dist,0x3f,sizeof dist);
    memset(cnt,0,sizeof cnt);
    dist[0][Start.first][Start.second]=0;
    q.push(State(Start,0));
    pair<int,int> mary;
    while(!q.empty()){
        State u = q.top();
        q.pop();
        int step = u.step;
//        cout<<u.here.first<<" "<<u.here.second<<" "<<step<<endl;
        if(End==u.here){
            //while(!q.empty()) u = q.top(), printf("%d %d %d\n",u.here.first,u.here.second,u.step), q.pop();
            return step;
        }
        int z = step%4;
        for(int i=0; i<4; i++){
            int x = u.here.first+dx[i];
            int y = u.here.second+dy[i];
            if(judge(z,x,y)){
                if(s[z][x][y]=='x'||s[z][u.here.first][u.here.second]=='x'){
                    if(step+3<dist[z][x][y]){
                        dist[z][x][y]=step+3;
                        mary = make_pair(x,y);
                        q.push(State(mary,step+3));
                    }
                }
                else{
                    if(step+1<dist[z][x][y]){
                        dist[z][x][y]=step+1;
                        mary = make_pair(x,y);
                        q.push(State(mary,step+1));
                    }
                }
            }
        }
        if(cnt[z][u.here.first][u.here.second]<4){
            q.push(State(u.here,step+1));
            cnt[z][u.here.first][u.here.second]++;
        }
    }
    return -1;
}

int main(){
    freopen("/home/acm/code/input.txt","r", stdin);

    int t, cs=1;
    scanf("%d",&t);
    while(t--){
        scanf("%d",&n);
        for(int i = 0; i<n; i++){
            scanf("%s",s[0][i]);
            for(int j=0; j<n; j++){
                if(s[0][i][j]=='M'){
                    Start = make_pair(i,j);
                    s[0][i][j] = '.';
                }
                if(s[0][i][j]=='T'){
                    End = make_pair(i,j);
                    s[0][i][j] = '.';
                }
            }

        }

        for(int i=1; i<4; i++){
            change(i);
        }
        for(int k=0; k<4; k++){
            for(int i = 0; i < n; i++){
                for(int j=0; j<n; j++){
                    if(s[k][i][j]=='N'){
                        change2(0,k,i,j);
                    }
                    if(s[k][i][j]=='E'){
                        change2(1,k,i,j);
                    }
                    if(s[k][i][j]=='S'){
                        change2(2,k,i,j);
                    }
                    if(s[k][i][j]=='W'){
                        change2(3,k,i,j);
                    }
                }

            }
//            for(int i=0; i<n; i++){
//                for(int j=0; j<n; j++){
//                    putchar(s[k][i][j]);
//                }
//                puts("");
//            }
//            puts("");

        }
        printf("Case #%d: ",cs++);
        int temp = bfs();
        if(temp==-1) puts("-1");
        else printf("%d\n",temp);
    }


}

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

C++: #include <iostream>

int main()
{
	for(int i=1; i<10; i++){
		for(int j=1; j<10; j++){
			std::cout << i << "x" << j << "=" << i*j << std::endl;
		}
	}
	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 <iostream>
using namespace std;

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