#include <iostream>
using namespace std;
/* run this program using the console pauser or add your own getch, system("pause") or input loop */

int main(int argc, char** argv) {
	//目的：switch判斷10天後是星期幾
	cout<<"輸入今天是星期幾(0~6) = " ;
	int day;
	cin>>day;
	cout<<endl;
	
	switch((day+10)%7){
		case 0: 
			cout<<"10天後是星期天"<<endl;
			break;
		case 1:
			cout<<"10天後是星期一"<<endl;
			break;
		case 2:
			cout<<"10天後是星期二"<<endl;
			break;
		case 3:
			cout<<"10天後是星期三"<<endl;
			break;
		case 4:
			cout<<"10天後是星期四"<<endl;
			break;
		case 5:
			cout<<"10天後是星期五"<<endl;
			break;
		case 6:
			cout<<"10天後是星期六"<<endl;
			break;
		default:
			cout<<"輸入錯誤"<<endl;
			break;
			
	}
	
	return 0;
}