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