#include<stdio.h>
int main(void){
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){
printf("Error\n");
}}}}}}}}
return 0;
}