#include <stdio.h>

#include <stdlib.h>

int main() {
  int m, n, o, i, j, k;
  printf("Input the length of array1 and array2  ");
  scanf("%d%d", & m, & n);
  o = m + n;
  int arr1[m], arr2[n], arr3[o];
  printf("Input the array1  ");
  for (i = 0; i < m; i++) {
    scanf("%d", & arr1[i]);
  }
  printf("Input the array2  ");
  for (i = 0; i < n; i++) {
    scanf("%d", & arr2[i]);
  }
  for (i = 0; i < o; i++) {
    if (i < m) {
      arr3[i] = arr1[i];
    } else if (i >= m) {
      arr3[i] = arr2[i - m];
    }
  }
  for (i = 0; i < o; i++) {
    for (j = i + 1; j < o; j++) {
      if (arr3[i] == arr3[j]) {
        for (k = j; k < o; k++) {
          arr3[k] = arr3[k + 1];
        }
        o--;
      }
    }
  }
  for (i = 0; i < o; i++)
    printf("%d  ", arr3[i]);
  return 0;
}