#include<stdio.h>

int leap(int);

void main()
{
  int a, dow;
  char *daystr = "Junk";
  
  scanf("%d", &a);
  dow = dow2017(a);
  switch (dow) {
    case 0: 
      daystr = "Sun";
      break;
    case 1: 
      daystr = "Mon";
      break;
    case 2: 
      daystr = "Tue";
      break;
    case 3: 
      daystr = "Wed";
      break;
    case 4: 
      daystr = "Thu";
      break;
    case 5: 
      daystr = "Fri";
      break;
    case 6: 
      daystr = "Sat";
  }
  printf("dow is %d\n", dow);
  printf("The day of the week is %s.\n", daystr);
}

int leap(int y) 
{
  return (((y % 400) == 0) || 
          (((y % 4) == 0) && ((y % 100) != 0)));
}

int dow2017(int dcount)
{
  int offset = 6; /* 1 Jan 2017 is a Sunday */
  return ((offset + dcount) % 7);
}