#include <stdio.h>

int main()
{
	int i, j, N, c[10];
	long long x;
	scanf("%d", &N);
	for (i = 1; i <= 9; i++) scanf("%d", &(c[i]));
	for (i = 9, x = 0; i >= 1; i--) for (j = 1; j <= c[i]; j++) x = x * 10 + i;
	printf("%lld\n", x);
	fflush(stdout);
	return 0;
}