#include <stdio.h> 
  
/* Iterative function to reverse digits of num*/
int reversDigits(int num) 
{ 
    int rev_num = 0; 
    while(num > 0) 
    { 
        rev_num = rev_num*10 + num%10; 
        num = num/10; 
    } 
    return rev_num; 
} 
  
/*Driver program to test reversDigits*/
int main() 
{ 
    int num = 3217; 
    printf("Reverse of no. is %d", reversDigits(num)); 
  
    getchar(); 
    return 0; 
} 
