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