#include<stdio.h>
int main() {
      double first, second, temp;
      printf("Enter first number: ");
      scanf("%lf", &first);
      printf("Enter second number: ");
      scanf("%lf", &second);
      // Value of first number assigned into temp
      temp = first;
      // Value of second is assigned to first
      first = second;
      // Value of temp is assigned to second
      second = temp;
      printf("\nAfter swapping, first number = %.2lf\n", first);
      printf("After swapping, second number = %.2lf", second);
      return 0;
}