从键盘输入一个三位整数,分别输出该数的个位数字,十位数字,百位数字,c语言,求急啊

#include
int main()
{
int num;
int a,b,c;
scanf("%d",&num);
a = num/100;
b = (num%100)/10;
c = num%10;
printf("a= %d,b = %d,c= %d\n",a,b,c);
return 0;
}