#include <iostream>
#include <string>
using namespace std;

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