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

char **create1(int n);
void create2(char **strPtr, int n);
void fill(char **strPtr, int n);

int main() {
  int n, i, j;
  char **strPtr;

  scanf("%d", &n);
  strPtr = create1(n * 2 + 1);
  create2(strPtr, n * 2 + 1);
  fill(strPtr, n);

  for (i = 0; i < 2 * n + 1; i++) {
    printf("%s\n", strPtr[i]);
  }

  for (i = 0; i < n * 2 + 1; i++)
    free(strPtr[i]);
  free(strPtr);

  return 0;
}

/* 请在这里填写答案 */
char **create1(int n) {
  char **strPtr =
      malloc(sizeof(char *) * n); // This char * is soooooo important
  return strPtr;
}

void create2(char **strPtr, int n) {
  for (int i = 0; i < n; i++) {
    strPtr[i] = malloc(sizeof(char) * (n + 1));
  }
}

void fill(char **strPtr, int n) {
  int loc;
  if (n == 0) {         // Take care of special case
    strPtr[0][0] = 'X'; // When n == 0, it is only X
    return;
  }
  for (int i = 0; i <= n; i++) {
    loc = 0;
    for (int j = 0; j < n - i; j++) {
      strPtr[i][loc++] = ' ';
    }
    if (i % n == 0) {
      strPtr[i][loc++] = 'X';
    } else {
      strPtr[i][loc++] = '/';
    }
    for (int j = 0; j < 2 * i - 1; j++) {
      strPtr[i][loc++] = ' ';
    }
    if (i != 0) {
      if (i == n) {
        strPtr[i][loc++] = 'X';
      } else {
        strPtr[i][loc++] = '\\';
      }
    }
    strPtr[i][loc] = '\0'; // EOL
  }
  for (int i = n + 1; i < 2 * n + 1; i++) {
    loc = 0;
    for (int j = 0; j < i - n; j++) {
      strPtr[i][loc++] = ' ';
    }
    if (i != n * 2) {
      strPtr[i][loc++] = '\\';
    } else {
      strPtr[i][loc++] = 'X';
    }
    for (int j = 0; j < -2 * (i - n) + 2 * n - 1; j++) {
      strPtr[i][loc++] = ' ';
    }
    if (i != 2 * n) {
      strPtr[i][loc++] = '/';
    }
    strPtr[i][loc] = '\0'; // EOL
  }
}