#include <stdio.h>
 
int main() {
    int a, b, temp;
    int *ptr1, *ptr2;
 
    // Input two numbers
    printf("Enter first number: ");
    scanf("%d", &a);
    printf("Enter second number: ");
    scanf("%d", &b);
 
    // Assign addresses to pointers
    ptr1 = &a;
    ptr2 = &b;
 
    // Swap using pointers
    temp = *ptr1;
    *ptr1 = *ptr2;
    *ptr2 = temp;
 
    // Display results
    printf("\nAfter swapping:\n");
    printf("First number = %d\n", a);
    printf("Second number = %d\n", b);
 
    return 0;
}