#include <iostream>
using namespace std;

int main(){
    int year, month, day;
    bool flug[5] = {false};

    while(cin >> year >> month >> day){
        if(year<1868 || (year==1868 && month<9) || (year==1868 && month==9 && day<8)) {
            cout << "pre-meiji" << endl;
        }
        else if(year<1912 || (year==1912 && month<7) || (year==1912 && month==7 && day<=29)){
            cout << "meiji " << year-1867 << " " << month << " " << day << endl;
        }
        else if(year<1926 || (year==1926 && month<12) || (year==1912 && month==12 && day<=24)){
            cout << "taisho " << year-1911 << " " << month << " " << day << endl;
        }
        else if(year<1989 || (year==1989 && month==1 && day<=7)){
            cout << "showa " << year-1925 << " " << month << " " << day << endl;
        }
        else{
            cout << "heisei " << year-1988 << " " << month << " " << day << endl;
        }
    }
    return 0;
}