输入任意一整数，求该整数各位数码之和

#include <stdio.h>
main()
{
    int n,m,sum=0;
    scanf("%d",&n);
    m=n%10;
    sum=sum+m;
    printf("%d",m);
    n=n/10;
    while(n!=0)
    {
        m=n%10;
        sum=sum+m;
        printf("+%d",m);
        n=n/10;
         
    } 
    printf("=%d\n",sum);
}