#include<iostream>
#include<string>
#include<cstdio>
#include<cstring>
#include<algorithm>
using namespace std;
int main(void){
    int y,m,d;

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


    return 0;
}