#include<stdio.h>
#include<string.h>

int res[1050];

int main()
{
	int n,i,l,r,ch=1,j=0;
	scanf("%d",&n);
	scanf("%d",&l);
	for(i=0;i<n-1;i++)
	{
		scanf("%d",&r);
		if(l==r)
			ch++;
		else
		{
			res[j++]=ch;
			res[j++]=l;
			l=r;
			ch=1;
		}
	}
	res[j++]=ch;
	res[j++]=l;
	for(i=0;i<j;i++)
		printf("%d ",res[i]);
	printf("\n");
	return 0;
}