#include <iostream>
#include <stdio.h>
using namespace std;

int main(){
	int year, month, day;

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

	return 0;
}