#include<iostream>
using namespace std;
int main()
{
	int y,m,d;
	while(cin>>y>>m>>d) 
	{
		if(y>=1989)
		{
			if(y==1989&&m==1&&d<=7)
			{
				cout<<"showa"<<" "<<y-1926+1<<" "<<m<<" "<<d<<endl;
			}
			else cout<<"heisei"<<" "<<y-1989+1<<" "<<m<<" "<<d<<endl;
		}
		else if(y>=1926)
		{
			if(y==1926&&m<12||(m==12&&d<25))
			{
				cout<<"taisho"<<" "<<y-1912+1<<" "<<m<<" "<<d<<endl;
			}
			else
			{
				cout<<"showa"<<" "<<y-1926+1<<" "<<m<<" "<<d<<endl;
			}
		}
		else if(y>=1912)
		{
			if(y==1912&&m<7||(m==7&&d<30))
			{
				cout<<"meiji"<<" "<<y-1868+1<<" "<<m<<" "<<d<<endl;
			}
			else
			{
				cout<<"taisho"<<" "<<y-1912+1<<" "<<m<<" "<<d<<endl;
			}
		}
		else
		{
			if(y<1868||y==1868&&(m<9||m==9&&d<8))
			{
				cout<<"pre-meiji"<<endl;
			}
			else
			{
				cout<<"meiji"<<" "<<y-1868+1<<" "<<m<<" "<<d<<endl;
			}
		}
	}
  return 0;
}