Go: package main

import "fmt"


func main() {
	for i := 1; i <= 9; i++ {
		for i2 := 1; i2 <= 9; i2++ {
			fmt.Printf("%d ?? %d = %d\n", i, i2, i*i2)
		}
	}
}

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;
}

C++: #include "bits/stdc++.h"
using namespace std;
#define repi(i,a,b) for(int i=(a), i##_len=(b); i<i##_len; ++i)
#define rep(i,n) repi(i,0,n)
#define repi_(i,a,b) for(int i=(a), i##_len=(b); i<=i##_len; ++i)
#define rep_(i,n) repi_(i,0,n)
#define all(x) (x).begin(),(x).end()
#define vsort(v) sort((v).begin(), (v).end())
#define gsort(v) tsort(v); reverse((v).begin(), (v).end())
#define vrev(v) reverse((v).begin(), (v).end())
#define siz(v) ((int)(v).size())
#define ers(v, n) (v).erase((v).begin() + n)
#define cnt(v, n) count(all(v), n)
#define vmin(v) *min_element(v.begin(), v.end())
#define vmax(v) *max_element(v.begin(), v.end())
#define el "\n"
#define co(x) cout<<(x)<<el
#define coc(c, a, b) if(c)co((a));else co((b))
#define cosp(x) cout<<(x)<<' '
#define YES(c) coc(c,"YES", "NO")
#define Yes(c) coc(c,"Yes", "No")
#define yes(c) coc(c,"yes", "no")
#define POSSIBLE(c) coc(c, "POSSIBLE", "IMPOSSIBLE")
#define Possible(c) coc(c, "Possible", "Impossible")
#define possible(c) coc(c, "possible", "impossible")
#define inf INT_MAX
#ifdef tqktmp_2
#define gc() getchar(); getchar()
#else
#define gc() 1
#endif
const unsigned int bf0 = (1 << 0);
const unsigned int bf1 = (1 << 1);
const unsigned int bf2 = (1 << 2);
const unsigned int bf3 = (1 << 3);
const unsigned int bf4 = (1 << 4);
const unsigned int bf5 = (1 << 5);
const unsigned int bf6 = (1 << 6);
const unsigned int bf7 = (1 << 7);

typedef long long lint;
typedef vector<int> ivec; typedef vector<string> svec;

lint dx[8] = { 0,1,1,1,0,-1,-1,-1 },
dy[8] = { 1,1,0,-1,-1,-1,0,1 };

template<class T>inline bool maxi(T &a, const T &b) { if (a<b) { a = b; return 1; } return 0; }
template<class T>inline bool mini(T &a, const T &b) { if (b<a) { a = b; return 1; } return 0; }




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

	repi(i, 1, 10)repi(j, 1, 10) {
		cout << i << "x" << j << "=" << i * j << el;
	}
	gc();
}

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

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