#include <stdio.h>
#include <string.h>
#include <math.h>



int main() {
  char myNText[20];

  printf("put your index : ");
  scanf("%s",myNText);

  int numLet = floor(strlen(myNText));
    printf("%d\n",numLet);
  int result ;
  for(int numText =0;numText<numLet;numText++){
    
    int compareTextNum = numLet-numText-1;
    if(myNText[numText]!=myNText[compareTextNum]){
        result = 1;
        goto res;
    }


  }
  res :(result==1)?printf("No,it's not"):printf("Yes,it is");
   

  return 0;
}