#include<iostream>
using namespace std;
int y,m,d;


int main(){
  while(cin>>y>>m>>d){
    if(y<1868|| (y==1868&&m<9) || (y==1868&&m==9&&d<8) ){
      cout<<"pre-meiji"<<endl;continue;
    }else if(y<1912||(y==1912&&m<7 )||(y==1912&&m==7&&d<30)){
      cout<<"meiji ";y-=1867;
    }else if(y<1926||(y==1926&&m<12)||(y==1926&&m==12&&d<25)){
      cout<<"taisho ";y-=1911;
    }else if(y<1989||(y==1989&&m<1 )||(y==1989&&m==1&&d<8)){
      cout<<"showa ";y-=1925;
    }else{
      cout<<"heisei ";y-=1988;
    }
    cout<<y<<' '<<m<<' '<<d<<endl;
  }
  return 0;
}