SUM OF FOUR DIGITS FROM THE INPUT OF A FOUR DIGIT NUMBER

#include <stdio.h>
int main()
{
    int num, num1, num2, num3, num4, sum;

    printf("Enter a 4 digit number = ");
    scanf("%d",&num);

    num4 = num%10;
    num = num/10;
    num3 = num%10;
    num = num/10;
    num2 = num%10;
    num = num/10;
    num1 = num%10;

    printf("First digit = %d", num1);
    printf("\nSecond digit  %d", num2);
    printf("\nThird digit = %d", num3);
    printf("\nFourth digit = %d", num4);

    sum=num1+num2+num3+num4;

    printf("\nSum of all four digits = %d", sum);

    return 0;
}