#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);
    }
}