/*
UID:cheepok
PID:sorta
*/

#include<stdio.h>
#include<stdlib.h>

int n,t,a[25],b[25],ans[51];

int cmp(const void *a,const void *b)
{
	return *(int *)a-*(int *)b;
}

void swap(int k)
{
	int i,j;
	for(i=1,j=k;i<j;i++,j--)
	{
		a[i]^=a[j]^=a[i]^=a[j];
	}
}

int main()
{
	freopen("sorta.in","r",stdin);
	freopen("sorta.out","w",stdout);
	int i,j;
	scanf("%d",&n);
	for(i=1;i<=n;i++)scanf("%d",&a[i]);
	for(i=1;i<=n;i++)b[i]=a[i];
	qsort(b+1,n,4,cmp);
	for(i=n;i>1;i--)
	{
		if(a[i]!=b[i])
		{
			if(a[1]==b[i])
			{
				ans[++t]=i;
				swap(i);
			}
			for(j=2;j<i;j++)
			{
				if(a[j]==b[i])
				{
					ans[++t]=j;
					swap(j);
					ans[++t]=i;
					swap(i);
				}
			}
		}
	}
	printf("%d\n",t);
	for(i=1;i<=t;i++)printf("%d ",ans[i]);
	printf("\n");
	return 0;
}