#include <stdio.h>
 
// Function declarations
int reverseNumber(int num, int rev);
 
int main() {
    int number, reversed;
 
    // Input number
    printf("Enter a number: ");
    scanf("%d", &number);
 
    // Function call (start with rev = 0)
    reversed = reverseNumber(number, 0);
 
    // Display result
    printf("Reversed number: %d\n", reversed);
 
    return 0;
}
 
// Recursive function to reverse a number
int reverseNumber(int num, int rev) {
    if (num == 0)
        return rev; // Base condition
    return reverseNumber(num / 10, rev * 10 + (num % 10));
}