C program to read an integer and compute the sum of digits

#include<stdio.h>
int main()
{
    int n,m,sum=0;

    printf("enter a value: ");
    scanf("%d", &n);

    while (n>0)
    {
      m=n%10;
      sum=sum+m;
      n/=10;
    }
     printf("%d", sum);


  return 0;
}