#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int poli(char a[],int n,int i)
{
	int b=1;
	if((i==n/2)&&(b==n/2)) return 1;
	else if(i==n/2) return -1;
	if(a[i]==a[n-i]) b++;
	poli(a,n,i+1);
}

main()
{
	int i,n;
	printf("unesi duzinu niza\n");
	scanf("%d",&n);
	getchar();
		char *a=(char*)malloc(n*sizeof(char));

		for(i=0;i<n;i++)a[i]=getchar();
		if(n%2==0)
		{
			if(poli(a,n,0)==1) printf("rec jeste");
			else printf("rec nije ");
		}
		else
		{
			if (poli(a,n-1,0)==-1) printf("rec nije");
			else printf("rec jeste");
		}

}