#include <stdio.h>
#include <string.h>

enum weekday {sun, mon, tue, wed, thu, fri, sat};

int main() {
    int input = 0;
    char output[10];
    scanf("%d", &input);
    switch (input % 7)
    {
    case sun:
        strcpy(output, "Sunday");
        break;
    case mon:
        strcpy(output, "Monday");
        break;
    case tue:
        strcpy(output, "Tuesday");
        break;
    case wed:
        strcpy(output, "Wednesday");
        break;
    case thu:
        strcpy(output, "Thursday");
        break;
    case fri:
        strcpy(output, "Friday");
        break;
    case sat:
        strcpy(output, "Saturday");
        break;
    default:
        break;
    }
    printf("%s", output);
    return 0;
}