#include<iostream>
#include<string>
int main() {
    std::string date_str;
    std::cin>> date_str;
    int day,month,year;
    sscanf(date_str.c_str(),"%d-%d-%d",&year,&year,&month,&day);
    bool valid=(year>=1900 && year<=9999) &&
    (month>=1 && month<=12) &&
    (day >=1&& day<=31);
    std::cout<<(valid?1:0)<<std::endl;
    return 0;
}