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

#if defined(NORMAALI)

#define MAXNUM 8

int main()
{
  int nums[MAXNUM+1], index1, index2;

  index1=-1;
  do {
    if (index1>=MAXNUM) {
      printf("Liian iso, en osaa\n");
      exit(EXIT_FAILURE);
    }
  } while (scanf("%1d", &nums[++index1]));

  index2=-1;  
  while (++index2<--index1) {
#ifdef DEBUG
    printf("%d[%d] ?\? %d[%d]\n", nums[index2],index2, nums[index1],index1);
#endif
    if (nums[index2] != nums[index1]) {
      printf("Ei oo\n");
      exit(EXIT_FAILURE);
    }
  }
  printf("Palindromi!\n");
  exit(EXIT_SUCCESS);
}


#elif defined(NORMFUN)

#define MAXNUM 8

int palindromi(int a[], int len)
{
  while (a<a+len) {
    if (a[0] != a[len-1]) return 0;
    a++; len--;
  }
  return 1;
}

int main()
{
  int nums[MAXNUM+1], index1;

  index1=-1;
  do {
    if (index1>=MAXNUM) {
      printf("Liian iso, en osaa\n");
      exit(EXIT_FAILURE);
    }
  } while (scanf("%1d", &nums[++index1]));

  if (palindromi(nums, index1)) {
    printf("Palindromi!\n");
    exit(EXIT_SUCCESS);
  } else {
      printf("Ei oo\n");
      exit(EXIT_FAILURE);
  }
}



#elif defined(MAKROTAULU)

#define N 20
#define MAXNUM (N-2)
#define index1 a[0]
#define index2 a[1]
#define nums (&a[2])
int a[N];

int main()
{
  //  int nums[MAXNUM+1], index1, index2;

  index1=-1;
  do {
    if (index1>=MAXNUM) {
      printf("Liian iso, en osaa\n");
      exit(EXIT_FAILURE);
    }
  } while (scanf("%1d", &nums[++index1]));
  index2=-1;  
  while (++index2<--index1) {
#ifdef DEBUG
    printf("%d[%d] ?\? %d[%d]\n", nums[index2],index2, nums[index1],index1);
#endif
    if (nums[index2] != nums[index1]) {
      printf("Ei oo\n");
      exit(EXIT_FAILURE);
    }
  }
  printf("Palindromi!\n");
  exit(EXIT_SUCCESS);
}


#else

#define N 10
int a[N];

int main()
{
  a[0]=1;
  do {
    if (a[0]>=N) {
      printf("Liian iso, en osaa\n");
      exit(EXIT_FAILURE);
    }
  } while (scanf("%1d", &a[++a[0]]));

  a[1]=1;  
  while (++a[1]<--a[0]) {
#ifdef DEBUG
    printf("%d[%d] ?\? %d[%d]\n", a[a[1]],a[1], a[a[0]],a[0]);
#endif
    if (a[a[1]] != a[a[0]]) {
      printf("Ei oo\n");
      exit(EXIT_FAILURE);
    }
  }
  printf("Palindromi!\n");
  exit(EXIT_SUCCESS);
}

#endif