#include<iostream>
using namespace std;

int main(){

  int y,m,d;

  while(cin >> y >> m >> d){

    if(y < 1868 || (y == 1868 && m <= 9 && d < 8)) cout << "pre-meiji" << endl;
    else if(y < 1912 || (y == 1912 && m <= 7 && d < 30)) cout << "meiji " << y-1867 << " " << m << " " << d << endl;
    else if(y < 1926 || (y == 1926 && m <= 12 && d < 25)) cout << "taisho " << y-1911 << " " << m << " " << d << endl;
    else if(y < 1989 || (y == 1989 && m <= 1 && d < 8)) cout << "showa " << y-1925 << " " << m << " " << d << endl;
    else cout << "heisei " << y-1988 << " " << m << " " << d << endl;

  }
}