// yukicoder: No.286 Modulo Discount Store
// 2019.6.1 bal4u

#include <stdio.h>

#if 1
#define gc() getchar_unlocked()
#else
#define gc() getchar()
#endif
int in()    // 非負整数の入力
{
	int n = 0, c = gc();
	do n = 10 * n + (c & 0xf); while ((c = gc()) >= '0');
	return n;
}

int m[16];
int dp[65600], dc[65600];

int main()
{
	int i, j, k, N, lim, s, t;

	N = in();
	for (i = 0; i < N; i++) m[i] = in();
	lim = 1 << N;
	for (i = 0; i < lim; i++) {
		s = 0; j = N; while (j--) if ((i >> j) & 1) s += m[j];
		dc[i] = s % 1000;
	}
	for (i = 0; i < lim; i++) {
		j = N; while (j--) if (!((i >> j) & 1)) {
			if ((k = m[j] - dc[i]) < 0) k = 0;
			k += dp[i];
			t = i | (1<<j); if (dp[t] == 0 || dp[t] > k) dp[t] = k;
		}
	}
	printf("%d\n", dp[lim-1]);
	return 0;
}