Help me in solving LPYAS151 problem

help
,
1

My issue

I can’t determine what went wrong in this code. so, i kindly request to let me know what is wrong

My code

#include <stdio.h>
int main() {
    int num, originalNum, remainder, result = 0;
    scanf("%d", &num);
    originalNum = num;

    while (originalNum != 0) {
       // remainder contains the last digit
        remainder = originalNum % 10;
        
       result += remainder * remainder * remainder;
        
       // removing last digit from the orignal number
       originalNum /= 10;
    }

    if (result == num)
        printf("Armstrong");
    else
        printf("Not Armstrong");

    return 0;
}

Learning course: Algorithmic Problem Solving
Problem Link: https://www.codechef.com/learn/course/klu-problem-solving/KLUPS00A/problems/LPYAS151