#include<iostream>
#include<string>
#include<algorithm>
#include<vector>
#include<cstdio>
#include<cmath>
#define pb(in,tmp) in.push_back(tmp)
#define loop(i,a,b) for(int i=a;i<b;i++)
#define rep(i,b) loop(i,0,b)
using namespace std;
int main(){
int y,m,d;
while(cin>>y>>m>>d){
if(y>1989||(y==1989&&m>1)||(y==1989&&m==1&&d>=8))
cout<<"heisei "<<y-1988<<" "<<m<<" "<<d<<endl;
else if(y>1926||(y==1926&&m>12)||(y==1926&&m==12&&d>=25))
cout<<"showa "<<y-1925<<" "<<m<<" "<<d<<endl;
else if(y>1912||(y==1912&&m>7)||(y==1912&&m==7&&d>=30))
cout<<"taisho "<<y-1911<<" "<<m<<" "<<d<<endl;
else if(y>1868||(y==1868&&m>9)||(y==1868&&m==9&&d>=8))
cout<<"meiji "<<y-1867<<" "<<m<<" "<<d<<endl;
else
cout<<"pre-meiji"<<endl;

}

}