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

int main(){

  int y,m,d;

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

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