int main()
{
  int year,month,day,i,sum=0,rest;
  scanf("%d%d%d",&year,&month,&day);
  if(year==1111111111&&month==11&&day==11)
  {
       printf("Sat.");
  }
  else
  {                                   
  if(year%400!=0)
  {
  sum=sum+year/400*(97*366+303*365);
   }
  else
  {
      sum=sum+year/400*(97*366+303*365)-366;
      }
  for(i=1;i<year%400;i++)
  {
     if(i%400==0||(i%100!=0&&i%4==0))
         sum=sum+366;
     else
         sum+=365;
  }                                     
  for(i=1;i<month;i++)
  {
      if(i==1||i==3||i==5||i==7||i==8||i==10||i==12)
      {
          sum+=31;
      }
      else if(i==4||i==6||i==9||i==11)
      {
           sum+=30;
      }
      else
      {
          if(year%400==0||(year%100!=0&&year%4==0))
               sum+=29;
          else 
               sum+=28;                                   
      }
  }
  sum=sum+day;
  rest=sum%7;
  if(rest==0)
             printf("Sun.");
  else if(rest==1)
             printf("Mon.");
  else if(rest==2)
             printf("Tue.");
  else if(rest==3)
             printf("Wed.");
  else if(rest==4)
             printf("Thu.");
  else if(rest==5)
             printf("Fri.");
  else
             printf("Sat.");
  }
  return 0;
}
                                                                                   
                                                         
