int Count_Digit ( const int N, const int D )
{
int count=0;
int a=N;
int b;
if(a==0) {
if(D==0)return 1;
else
return 0;
}
if(a<0)a=-a;
while(a) {
b=a%10;
if(b==D) {
count++;
}
a/=10;
}
return count;



}