#pragma GCC optimize ("Ofast")
#include<bits/stdc++.h>
using namespace std;
inline int my_getchar_unlocked(){
  static char buf[1048576];
  static int s = 1048576;
  static int e = 1048576;
  if(s == e && e == 1048576){
    e = fread_unlocked(buf, 1, 1048576, stdin);
    s = 0;
  }
  if(s == e){
    return EOF;
  }
  return buf[s++];
}
inline void rd(int &x){
  int k;
  int m=0;
  x=0;
  for(;;){
    k = my_getchar_unlocked();
    if(k=='-'){
      m=1;
      break;
    }
    if('0'<=k&&k<='9'){
      x=k-'0';
      break;
    }
  }
  for(;;){
    k = my_getchar_unlocked();
    if(k<'0'||k>'9'){
      break;
    }
    x=x*10+k-'0';
  }
  if(m){
    x=-x;
  }
}
inline void rd(long long &x){
  int k;
  int m=0;
  x=0;
  for(;;){
    k = my_getchar_unlocked();
    if(k=='-'){
      m=1;
      break;
    }
    if('0'<=k&&k<='9'){
      x=k-'0';
      break;
    }
  }
  for(;;){
    k = my_getchar_unlocked();
    if(k<'0'||k>'9'){
      break;
    }
    x=x*10+k-'0';
  }
  if(m){
    x=-x;
  }
}
inline int rd_int(void){
  int x;
  rd(x);
  return x;
}
struct MY_WRITER{
  char buf[1048576];
  int s;
  int e;
  MY_WRITER(){
    s = 0;
    e = 1048576;
  }
  ~MY_WRITER(){
    if(s){
      fwrite_unlocked(buf, 1, s, stdout);
    }
  }
}
;
MY_WRITER MY_WRITER_VAR;
void my_putchar_unlocked(int a){
  if(MY_WRITER_VAR.s == MY_WRITER_VAR.e){
    fwrite_unlocked(MY_WRITER_VAR.buf, 1, MY_WRITER_VAR.s, stdout);
    MY_WRITER_VAR.s = 0;
  }
  MY_WRITER_VAR.buf[MY_WRITER_VAR.s++] = a;
}
inline void wt_L(char a){
  my_putchar_unlocked(a);
}
inline void wt_L(long long x){
  int s=0;
  int m=0;
  char f[20];
  if(x<0){
    m=1;
    x=-x;
  }
  while(x){
    f[s++]=x%10;
    x/=10;
  }
  if(!s){
    f[s++]=0;
  }
  if(m){
    my_putchar_unlocked('-');
  }
  while(s--){
    my_putchar_unlocked(f[s]+'0');
  }
}
long long D;
long long A;
long long B;
int main(){
  int Lj4PdHRW;
  int KL2GvlyY = rd_int();
  for(Lj4PdHRW=(0);Lj4PdHRW<(KL2GvlyY);Lj4PdHRW++){
    long long res;
    long long f = 1;
    rd(D);D += (-1);
    rd(A);
    rd(B);B += (1);
    if(A==0){
      A++;
    }
    res = D * (D+1) / 2 * ((B / D) - (A / D));
    {
      auto cTE1_r3A = (D);
      A %= cTE1_r3A;
      B %= cTE1_r3A;
    }
    if(A > B){
      f = -1;
      swap(A, B);
    }
    res += (B-A) * (A+B-1) / 2 * f;
    if(A==0 && B!=0){
      res += D * f;
    }
    wt_L(res);
    wt_L('\n');
  }
  return 0;
}
// cLay varsion 20201003-1

// --- original code ---
// ll D, A, B;
// {
//   REP(rd_int()){
//     ll res, f = 1;
//     rd(D--, A, B++);
//     if(A==0) A++;
//     res = D * (D+1) / 2 * ((B / D) - (A / D));
//     (A, B) %= D;
//     if(A > B) f = -1, swap(A, B);
//     res += (B-A) * (A+B-1) / 2 * f;
//     if(A==0 && B!=0) res += D * f;
//     wt(res);
//   }
// }