#include <iostream>

using namespace std;

int main(){
  int y,m,d;
  while(cin>>y>>m>>d){
    if(y>1989||y==1989&&(m>1||(m==1&&d>=8))) cout<<"heisei "<<y-1989+1<<' '<<m<<' '<<d<<endl;
    else if(y>1926||y==1926&&(m>12||(m==12&&d>=25))) cout<<"showa "<<y-1926+1<<' '<<m<<' '<<d<<endl;
    else if(y>1912||y==1912&&(m>7||(m==7&&d>=30))) cout<<"taisho "<<y-1912+1<<' '<<m<<' '<<d<<endl;
    else if(y>1868||y==1868&&(m>9||(m==9&&d>=8))) cout<<"meiji "<<y-1868+1<<' '<<m<<' '<<d<<endl;
    else cout<<"pre-meiji"<<endl;
  }
  return 0;
}