#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"<<endl;
		} else if (y<1912 || (y==1912 && m<7) || (y==1912 && m==7 && d<30)) {
			cout<<"meiji "<<(y-1867)<<" "<<m<<" "<<d<<endl;
		} else if (y<1926 || (y==1926 && m<12) || (y==1926 && m==12 && d<25)) {
			cout<<"taisho "<<(y-1911)<<" "<<m<<" "<<d<<endl;
		} else if (y<1989 || (y==1989 && m<1) || (y==1989 && m==1 && d<8)) {
			cout<<"showa "<<(y-1925)<<" "<<m<<" "<<d<<endl;
		} else {
			cout<<"heisei "<<(y-1988)<<" "<<m<<" "<<d<<endl;
		}
	}
	return 0;
}