#include <stdio.h>
 
int main() {
    int arr[100], freq[100];
    int n, i, j, count;
 
    // Input array size
    printf("Enter number of elements in the array: ");
    scanf("%d", &n);
 
    // Input array elements
    printf("Enter %d elements:\n", n);
    for (i = 0; i < n; i++) {
        scanf("%d", &arr[i]);
        freq[i] = -1;  // Initialize frequency array
    }
 
    // Count frequency of each element
    for (i = 0; i < n; i++) {
        count = 1;
        for (j = i + 1; j < n; j++) {
            if (arr[i] == arr[j]) {
                count++;
                freq[j] = 0; // Mark duplicate as counted
            }
        }
        if (freq[i] != 0)
            freq[i] = count;
    }
 
    // Display duplicate elements
    printf("\nDuplicate elements in the array:\n");
    for (i = 0; i < n; i++) {
        if (freq[i] > 1) {
            printf("%d ", arr[i]);
        }
    }
 
    printf("\n");
    return 0;
}