HDU 1017 A Mathematical Curiosity

#include <iostream>
#include <cstdio>

using namespace std;

int main()
{
int N;
scanf("%d",&N);
while(N--){
int n,m,a,b;
int num=0,i=0;
while(~scanf("%d%d",&n,&m)&&n){
num=0;
for(b=1;b<n;b++){
for(a=1;a<b;a++){
if((a*a+b*b+m)%(a*b) == 0)
num++;
}

}

printf("Case %d: %d\n",++i,num);

}
if(N != 0)
printf("\n");
}
return 0;
}