#include<stdio.h>

void name_transformation(int year, int month, int day);

int main(void)
{
    int a, b, c;/*aは年、 bは月、cは日*/
    while((scanf("%d %d %d\n",&a, &b, &c)) != EOF){
        name_transformation(a, b, c);
    }
    return 0;
}

void name_transformation(int year, int month, int day)
{
    int gengou;
    if (year >= 1989){
        if( year > 1989){
            gengou = year - 1988;
            printf("heisei %d %d %d\n", gengou, month, day);
         }else {
            if (month >= 1){
                 if ( month > 1){
                    printf("heisei 1 %d %d\n", month, day);
                }else {
                    if( day >= 8){
                        printf("heisei 1 1 %d\n", day);
                    }else{
                        printf("syowa 64 1 %d\n", day);
                    }
                }
            }
         }        
    }else if(year >= 1926){
        if( year > 1926){
            gengou = year - 1925;
            printf("showa %d %d %d\n", gengou, month, day);
         }else {
            if (month == 12){
                 if ( day >= 25){
                    printf("syowa 1 12 %d\n", day);
                }else {
                    printf("taisho 15 12 %d\n", day);
                }
            }
         }            
    }else if (year >= 1912){
        if (year > 1912){
            gengou = year - 1911;
            printf("taisho %d %d %d\n", gengou, month, day);
         }else {
            if (month >= 7){
                 if ( month > 7){
                    printf("taisho 1 %d %d\n", month, day);
                }else {
                    if (day >= 30){
                        printf("taisho 1 7 %d\n", day);
                    }else{
                        printf("meiji 45 7 %d\n", day);
                    }
                }
            }
         }        
     }else if (year >= 1868){
        if (year > 1868){
            gengou = year - 1867;
            printf("meiji %d %d %d\n", gengou, month, day);
        }else {
            if (month >= 9){
                 if ( month > 9){
                    printf("meiji 1 %d %d\n", month, day);
                 }else {
                    if (day >= 8){
                        printf("meiji 1 9 %d\n", day);
                    }else{
                        printf("pre-meiji\n");
                    }
                }
            }
        }        
    }else{
        printf("pre-meiji\n");
    }
}
    
    
    
   