import java.util.Scanner;
public class Main {
	  public static void main(String[] args) {
	        Scanner sc = new Scanner(System.in);
	        int t = sc.nextInt();
	        for(int i = 0; i < t; i++){
	        	long n = sc.nextLong();
		        long a = sc.nextLong();
		        long b = sc.nextLong();
		        long na = floorSum(n/a, 1, a, n - a * (n/a));
		        long nb = floorSum(n, b, 1, 0);
		        long nab = floorSum(n/a, b, a, n - a * (n/a));
		        long ans = na + nb - nab;
		        System.out.println(ans);

	        }
	    }
	  public static long floorSum(long n, long m, long a, long b){
		  long ret = 0;
		  if(a >= m){
			  ret += (n - 1) * n * (a/m)/2;
			  a %= m;
		  }
		  if(b >= m){
			  ret += n * (b/m);
			  b %= m;
		  }
		  long ym = (a * n + b) / m;
		  long xm = (ym * m - b);
		  if(ym == 0) return ret;
		  ret += (n - (xm + a - 1)/a) * ym;
		  ret += floorSum(ym, a, m, (a - xm % a) % a);
		  return ret;
	  }

}