#include <iostream>
using namespace std;
 
int y,m,d;
 
int main()
{
    while(cin>>y>>m>>d)
	{
        if(y>1989)cout<<"heisei "<<y-1988;
        else if(y==1989)
		{
            if(m>1)cout<<"heisei 1";
            else if(d>7)cout<<"heisei 1";
            else cout<<"showa 64";
        }
        else if(y>1926)cout<<"showa "<<y-1925;
        else if(y==1926)
		{
            if(m==12&&d>24)cout<<"showa 1";
            else cout<<"taisho 15";
        }
        else if(y>1912)cout<<"taisho "<<y-1911;
        else if(y==1912)
		{
            if(m>7)cout<<"taisho 1";
            else if(m==7&&d>29)cout<<"taisho 1";
            else cout<<"meiji 45";
        }
        else if(y>1868)cout<<"meiji "<<y-1867;
        else if(y==1868){
            if(m>9)cout<<"meiji 1";
            else if(m==9&&d>7)cout<<"meiji 1";
            else 
			{
				cout<<"pre-meiji"<<endl;continue;
			}
        }
        else 
		{
			cout<<"pre-meiji"<<endl;continue;
		}
        cout<<" "<<m<<" "<<d<<endl;
    }
	return 0;
}