#include<iostream>
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){cout<<"pre-meiji"<<endl;}
		else if(year == 1868 && month == 9 && day<8){cout<<"pre-meiji"<<endl;}
		else{
			if(year<1912){cout <<"meiji "<<year-1867<<" ";}
			else if(year == 1912 && month<7){cout <<"meiji "<<year-1867<<" ";}
			else if(year == 1912 && month == 7 && day<30){cout <<"meiji "<<year-1867<<" ";}
			else if(year<1926){cout <<"taisho "<<year-1911<<" ";}
			else if(year == 1926 && month<12){cout <<"taisho "<<year-1911<<" ";}
			else if(year == 1926 && month == 12 && day<25){cout <<"taisho "<<year-1911<<" ";}
			else if(year<1989){cout <<"showa "<<year-1925<<" ";}
			else if(year == 1989 && month<1){cout <<"showa "<<year-1925<<" ";}
			else if(year == 1989 && month == 1 && day<8){cout <<"showa "<<year-1925<<" ";}
			else{cout <<"heisei "<<year-1988<<" ";}
			cout<<month<<" "<<day<<endl;
		}
	}
	return 0;
}