#include<iostream>
#include<string>
using namespace std;
 bool isLeap(int year){
     if (year %400 == 0) return true;
     if (year %100 == 0) return false;
     if (year %4 == 0) return true;
     return false;
     
 }
 int main (){
     string date;
     cin>>date;
      if (date.length()!=10 || date[4] !='_' || date[7] != '_') {
          cout<<"Invalid input";
          return 0;
      }
      for (int i=0;i<10;i++){
          if(i==4||i==7)continue;
          if(!isdigit(date[i])){
              cout<<"Invalid input";
              return 0;
          }
      }
      int year=stoi(date.substr(0,4));
      int month=stoi(date.substr(5,2));
      int day=stoi(date.substr(8,2));
      
      if (year<1900 || year>2100 || month<1 || month>12 || day<1){
          cout<<"Invalid input";
          return 0;
      }
      int daysInMonth[] ={31,28,31,30,31,30,31,31,30,31,30,31};
      
      if(day>daysInMonth[month-1]){
          cout<<"Invalid input";
          return 0;
      }
        }
                int dayNumber=day;
                for(int i=0;i<month-1;i++)
                dayNumber+=daysInMonth[i];
                cout<<dayNumber;
        return 0;
     
 }