c++乘法竖式

#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
    short chengshu, beichengshu;
    cout << "两位乘法"<<endl;
    cin >> chengshu >> beichengshu;
    system("cls");
    cout << setw(7) << chengshu << endl;
    cout << setw(1) << "×" << setw(5) << beichengshu<<endl;
    cout << setw(7)<<"-------";
    cout << endl;
    cout << setw(7) << chengshu * (beichengshu % 10)<<endl;
    cout << setw(6) << chengshu * (beichengshu / 10)<<endl;
    cout << setw(7) << "-------"<<endl;
    cout << setw(7) << beichengshu * chengshu;
    while (true)
    {

    }

}