#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <string.h>
int main()
{
char word[31];
scanf("%[^\n]s", word);
char s1[30] = word;
char* sArr[30] = { NULL, };
int i = 0;
int trueornot;
char* ptr = strtok(s1, " ");
while (ptr != NULL)
{
sArr[i] = ptr;
i++;
ptr = strtok(NULL, " ");
}
int length;
length = strlen(sArr);
for (int i = 0; i < length / 2; i++)
{
if (sArr[i] != sArr[length - 1 - i])
{
trueornot = 0;
break;
}
}
printf("%d\n", trueornot);
return 0;
}