/* returns: 0 if valid move
 *          1 Otherwise
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>



int K;  // KxK board

int main(int argc, char*argv[]){

  K = atoi(argv[1]);
  int move =  atoi(argv[2]);
  char* board = new char[K*K];
  memset(board, 0, K*K*sizeof(char));
  FILE* f = fopen("b.txt", "rt");
  int i = 0;
  while (!feof(f) && i < K*K){
    fscanf(f, "%c", &board[i]);
    i++;
  }
  fclose(f);
  if((move > K*K-1) || (move < 0) || board[move]!='_')
    printf("%d\n", 1);
  else{
    printf("%d\n", 0);
    board[move] = 'X';
    FILE* f = fopen("b.txt", "wt");
    for(i = 0; i < K*K; i++)
      fprintf(f, "%c", board[i]);
  }
  fclose(f);
  delete []board;
  exit(0);
}