#include <stdio.h>
int main() {
int N;
scanf("%d", &N);
if (N == 1) {
printf(" Monday\n");
}
if (N == 2) {
printf("Tuesday\n");
}
if (N == 3) {
printf(" Wednesday\n");
}
if (N == 4) {
printf(" Thursday\n");
}
if (N == 5) {
printf(" Friday\n");
}
if (N == 6) {
printf(" Saturday\n");
}
if (N == 7) {
printf(" Sunday\n");
;
} else if (N > 7//N < 1) {
printf(" Error\n");
}
return 0;
}