#include<iostream>
#include <vector>
#include<string>
using namespace std;
string season(int month) {
  string str="";
  switch(month) {
    case 12: case 1: case 2: str="winter"; break;
    case 3: case 4: case 5: str="spring"; break;
    case 6: case 7: case 8: str="summer"; break;
    case 9: case 10: case 11: str="fall"; break;
  } //switch
  return str;
}//season

int main() {
  int month;
  cout<<"Enter the month:";
  cin>>month;
  string str=season(month);
  if(str=="") cout<<month<<" is not a valid month\n";
  else cout<<month<<" is in the "<<str<<endl;
  system("pause");
  return 0;
}//main