帮忙解决一下谢谢

这条语句没问题吧？ 怎么我输入1的时候它完全没有输出任何东西然后直接退回写代码的页面了？？？是不是我的VC有问题？？求个VC安装包
#include <iostream>
using namespace std;
void main()
{
    int ilnput;
    cin >> ilnput;
    switch (ilnput)

    {
    case '1':
        cout << "Monday" << endl;
   
    case'2':
        cout << "Tuesday" << endl;
   
    case'3':
        cout << "Wednesday" << endl;

    case'4':
            cout << "Thursday" << endl;
   
    case'5':
                cout << "Friday" << endl;

    case'6':
        cout << "Saturday" << endl;

    case'7':
        cout << "Sunday" << endl;
    default:
        cout << " input error" << endl;
   
    }
   
   
}