#include <vector>
#include <map>
#include <set>
#include <stack>
#include <queue>
#include <algorithm>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <string>
#include <cstring>
#include <complex>
#include <ctime>
#include <cstdlib>

using namespace std;

inline int to_int(string s) {int v; istringstream sin(s); sin >> v; return v;}
template<class T> inline string to_str(T x) {ostringstream sout; sout << x; return sout.str();}

typedef long long ll;

int main()
{
	int n;
	while(cin >> n)
	{
		if(!n)
		{
			break;
		}

		int a, mx = 0, age[256] = { 0 };
		for(int i = 0; i < n; i++)
		{
			cin >> a;
			age[a]++;
			mx = max(a, mx);
		}

		int sum = 0;
		for(int i = 0; i <= mx; i++)
		{
			if( i <= 60 && i > 0&& i % 10 == 0)
			{
				cout << sum << endl;
				sum = 0;
			}
			sum += age[i];
		}
		cout << sum << endl;
	}
}