#include<iostream>

using namespace std;

int main(void){

	int y,m,d;

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

}