C :

#include <stdio.h>
#include <string.h>
int a[5000001];
int main()
{
	int n, x;
	while(scanf("%d",&n) != EOF)
	{
		memset(a,0,sizeof(a));
		for(int i = 0 ; i < n ; i ++)
		{
			scanf("%d",&x);
			a[x] ++;
		}

		int max = -1, index = -1;
		for(int i = 5000000 ; i >= 0 ; i --)
		{
			if(a[i] > max)
			{
				max = a[i];
				index = i;
			}
		}

		printf("%d\n",index);
	}
	return 0;
}