int main(){
  int n,i,k,man=0,woman=0;
  char sex[7];
  double h,x,male[40],female[40];
  char a[5]={'m','a','l','e','\0'};
  scanf("%d",&n);
  for(i=0;i<n;i++){
    scanf("%s %lf",sex,&h);
    if((strcmp(sex,a))==0){
      male[man]=h;
      man++;
    }else{
      female[woman]=h;
      woman++;
    }
  }
  for(k=1;k<=man;k++){
    for(i=0;i<man-k;i++){
      if(male[i]>male[i+1]){
        x=male[i+1];
        male[i+1]=male[i];
        male[i]=x;
      }
    }
  }
  for(k=1;k<=woman;k++){
    for(i=0;i<woman-k;i++){
      if(female[i]>female[i+1]){
        x=female[i+1];
        female[i+1]=female[i];
        female[i]=x;
      }
    }
  }
  for(i=0;i<man;i++){
    printf("%.2lf ",male[i]);
  }
  for(i=woman-1;i>0;i--){
    printf("%.2lf ",female[i]);
  }
  printf("%.2lf",female[0]);
  return 0;
}
  