#include <stdio.h>

int main() {
    int day;
    scanf("%d",&day);
    switch(day)
    {
        case 1:printf("Monday");break;
        case 2:printf("Tuesday");break;
        case 3:printf("Wednesday");break;
        case 4:printf("Thursday");break;
        case 5:printf("Friday");break;
        case 6:printf("Saturday");break;
        case 7:printf("Sunday");break;
        default:printf("Error");
    }
    return 0;
}