#include<iostream>
using namespace std;

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