#include <iostream>
#include <string>
using namespace std;

int main()
{
	int y, m, d;
	while (cin>>y>>m>>d)
	{
		if (y >= 1990 || (y == 1989 && m >= 2) || (y == 1989 && m == 1 && d >= 8))
		{
			cout << "heisei " << y - 1989 + 1 << " " << m << " " << d << endl;
		}
		else if (y >= 1927 || (y == 1926 && m == 12 && d >= 25))
		{
			cout << "showa " << y - 1926 + 1 << " " << m << " " << d << endl;
		}
		else if (y >= 1913 || (y == 1912 && m >= 8) || (y == 1912 && m == 7 && d >= 30))
		{
			cout << "taisho " << y - 1912 + 1 << " " << m << " " << d << endl;
		}
		else if (y >= 1869 || (y == 1868 && m >= 10) || (y == 1868 && m >= 9 && d >= 8))
		{
			cout << "meiji " << y - 1868 + 1 << " " << m << " " << d << endl;
		}
		else 
		{
			cout << "pre-meiji " << endl;
		}
	}
	return 0;
}