#include <cstdio>
#include <iostream>
int main(){
	int y,m,d,x;
	while(std::cin>>y>>m>>d){
		x=y*10000+m*100+d;
		if(x<18680908)printf("pre-meiji\n");
		else if(x<19120730)printf("meiji %d %d %d\n",y-1867,m,d);
		else if(x<19261225)printf("taisho %d %d %d\n",y-1911,m,d);
		else if(x<19890108)printf("showa %d %d %d\n",y-1925,m,d);
		else printf("heisei %d %d %d\n",y-1988,m,d);
	}
}