#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 - 1868+1 << " " << m << " " << d << endl;
    else if( y < 1926
	|| y == 1926 && m < 12
	|| y == 1926 && m == 12 && d < 25
	) cout << "taisho " << y - 1912+1 << " " << m << " " << d << endl;
    else if( y < 1989
	|| y == 1989 && m == 1 && d < 8
	) cout << "showa " << y - 1926+1 << " " << m << " " << d << endl;
    else cout << "heisei " << y - 1989+1 << " " << m << " " << d << endl;
  }
  
  return 0;
}