救救菜鸡，爆零了QAQ

#include<iostream>
using namespace std;
int main()
{
    int m,i=0;
    char N[100];
    cin>>m;
    for(i=0;i<m;i++)
    {cin>>N[i];}
    i=0;

    /*for row 1*/
    for(i=0;i<m;i++){
        switch(N[i]){
            case'0':
            case'2':
            case'3':
            case'5':
            case'6':
            case'7':
            case'8':
            case'9':
                cout<<"XXX.";
                break;
        case '1':
                cout<<"..X.";
                break;
        case '4':
                cout<<"X.X.";
                    break;
        }
    }
    cout<<"\b "<<endl;

    /*for row 2*/
    for(i=0;i<m;i++){
        switch(N[i]){
            case'0':
                        case'4':
                        case'8':
                        case'9':
                cout<<"X.X.";
                break;
            case '1':
                        case'2':
                        case'3':
                        case'7':
                    cout<<"..X.";
                    break;
            case '5':case'6':
                    cout<<"X...";
                break;
        }
    }
    cout<<"\b "<<endl;

    /*for row 3*/
    for(i=0;i<m;i++){
        switch(N[i]){
            case '0':
                cout<<"X.X.";
                break;
            case'1':
                        case'7':
                cout<<"..X.";
                    break;
            case '2':
                        case'3':
                        case'4':
                        case'5':
                        case'6':
                        case'8':
                        case'9':
                cout<<"XXX.";
                break;
        }
    }
    cout<<"\b "<<endl;

    /*for row 4*/
    for(i=0;i<m;i++)
    {switch(N[i]){
            case'0':
                        case'6':
                        case'8':
                cout<<"X.X.";
                break;
            case '1':
                        case'3':
                        case'4':
                        case'5':
                        case'7':
                        case'9':
                cout<<"..X.";
                break;
            case '2':
                cout<<"X...";
                    break;
        }
    }
    cout<<"\b "<<endl;

    /*for row 5*/
    for(i=0;i<m;i++){
        switch(N[i]){
            case '0':
                        case'2':
                        case'3':
                        case'5':
                        case'6':
                        case'8':
                        case'9':
                cout<<"XXX.";
                break;
            case '1':case'4':case'7':
                    cout<<"..X.";
                break;
        }
    }
    cout<<"\b ";
    return 0;
}