#include<iostream>
using namespace std;

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