include<bits/stdc++.h>

using namespace std; int main(){

int n,b=0,c=0,d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0;
cin>>n;
int ds;
for(int i=1;i<=n;i++)
{
	cin>>ds;
	int dds=ds/100;
	int xds=(ds/10)%10;
	int jds=ds%10;
	if(dds==0)
	{
		b++;
	}
	else if(dds==1)
	{
		c++;
	}
	else if(dds==2)
	{
		d++;
	}
	else if(dds==3)
	{
		e++;
	}
	else if(dds==4)
	{
		c++;
	}
}

return 0; }