#include<stdio.h>
int main()
{
int n, reverse=0, rem,temp, max_palindrom = 1;
int i, j;

for (i = 1; i <= 9; i++)
{

for (j = 1; j <= 9; j++)
{
n = 1*j;

temp=n;
while(temp!=0)
{
rem=temp%10;
reverse=reverse*10+rem;
temp/=10;
}

if(reverse==n)
{

printf("2\n"); 

}

}
}

printf("%d ", max_palindrom);
return 0;
}