#include <iostream>
#include <cctype>
using namespace std;

enum Work_Days {Monday, Tuesday, Wednesday, Thursday, Friday};

Work_Days Convert(string day);

int main()
{
   string day_string;
   Work_Days day;
   cout << "Please enter a day of the work week (Monday through Friday): "
        << endl;
   cin >> day_string;
   day = Convert(day_string);
   cout << "The day is " << day << endl;
}

Work_Days Convert(string day)
{
   Work_Days result;
   
   switch(toupper(day[0]))
   {
      case 'M': result = Monday;
                break;
      case 'T': switch(toupper(day[1]))
                {
                   case 'U': result = Tuesday;
                             break;
                   case 'H': result = Thursday;
                             break;
                }
                break;
      case 'W': result = Wednesday;
                break;
      case 'F': result = Friday;
                break;
   }
   return result;
}