#include<stdio.h>
// Helper function that takes reversed value as argument
int reverseHelper(int n, int rev) {
    if (n == 0) return rev;
    return reverseHelper(n / 10, rev * 10 + (n % 10));
}
int reverseNumber(int n) {
    return reverseHelper(n, 0);
}

int main(){
        int n, RevNum;
        printf("Enter the value of n: (Positive int) \n");
        scanf("%d",&n);

        RevNum=reverseNumber(n);

        printf("Reverse of  %d = %d\n", n, RevNum);
        return 0;
}