int main()
{
	int n,i,j,m=0,f=0;
	double sz[40],male[40],female[40];
	char sex[40][10];
	scanf("%d",&n);
	for(i=0;i<n;i++)
	{
		scanf("%s%lf",&sex[i],&sz[i]);
		if(strcmp(sex[i],"male")==0)
		{
			male[m]=sz[i];
			m++;
		}
		else
		{
			female[f]=sz[i];
			f++;
		}
	}
	for(i=1;i<m;i++)
	{
		for(j=0;j<m-i;j++)
		{
			if(male[j]>male[j+1])
			{
				double c;
				c=male[j];
				male[j]=male[j+1];
				male[j+1]=c;
			}
		}
	}
	for(i=0;i<m;i++)
	{
		printf("%.2lf ",male[i]);
	}


	for(i=1;i<f;i++)
	{
		for(j=0;j<f-i;j++)
		{
			if(female[j]<female[j+1])
			{
				double d;
				d=female[j];
				female[j]=female[j+1];
				female[j+1]=d;
			}
		}
	}
	for(i=0;i<f;i++)
	{
		if(i==f-1)
		{
			printf("%.2lf",female[i]);
		}
		else
		{
		    printf("%.2lf ",female[i]);
		}
	}
	return 0;
}