#include<stdio.h>
void main()
{       int weekday;
        printf("今天星期幾（0－6）？");
        scanf("%d",&weekday);
        switch(weekday){
            case 0:printf("Sunday\n");break;
            case 1:printf("Monday\n");break;
            case 2:printf("Tuesday\n");break;
            case 3:printf("Wednesday\n");break;
            case 4:printf("Thursday\n");break;
            case 5:printf("Friday\n");break;
            case 6:printf("Saturday\n");break;
            default : printf("input error!\n");
        }
}