#include //#include //#include //#include #define rep(i, a) for (int i = (int)0; i < (int)a; ++i) #define rrep(i, a) for (int i = (int)a - 1; i >= 0; --i) #define REP(i, a, b) for (int i = (int)a; i < (int)b; ++i) #define RREP(i, a, b) for (int i = (int)a - 1; i >= b; --i) #define pb push_back #define eb emplace_back #define all(x) x.begin(), x.end() #define rall(x) x.rbegin(), x.rend() #define popcount __builtin_popcount using ll = long long; constexpr ll mod = 1e9 + 7; constexpr ll INF = 1LL << 60; // #pragma GCC target("avx2") // #pragma GCC optimize("O3") // #pragma GCC optimize("unroll-loops") //using lll=boost::multiprecision::cpp_int; //using Double=boost::multiprecision::number>;//仮数部が1024桁 template inline bool chmin(T &a, T b) { if (a > b) { a = b; return true; } return false; } template inline bool chmax(T &a, T b) { if (a < b) { a = b; return true; } return false; } template T mypow(T x, T n, const T &p = -1) { //x^nをmodで割った余り if(p!=-1){ x%=p; } T ret = 1; while (n > 0) { if (n & 1) { if (p != -1) ret = (ret * x) % p; else ret *= x; } if (p != -1) x = (x * x) % p; else x *= x; n >>= 1; } return ret; } using namespace std; //using namespace atcoder; void solve() { int t; cin>>t; while(t--){ ll d,a,b; cin>>d>>a>>b; if(a==0)++a; ll sum=d*(d-1)/2; ll ans=(b-a+1)/(d-1)*sum; if((b-a+1)%(d-1)==0){ } else if(a==0&&b<=d-2){ ans+=b*(b+1)/2; } else if(a%(d-1)==0){ ll l=(a+1)%(d-1),r=b%(d-1); ans+=r*(r+1)/2-l*(l-1)/2+(d-1); } else if(b%(d-1)==0){ ll l=a%(d-1),r=(b-1)%(d-1); ans+=r*(r+1)/2-l*(l-1)/2+(d-1); } else if(a%(d-1)<=b%(d-1)){ ll l=a%(d-1),r=b%(d-1); ans+=r*(r+1)/2-l*(l-1)/2; } else { ll l=a%(d-1),r=b%(d-1); ans+=d*(d-1)/2-l*(l-1)/2+r*(r+1)/2; } cout<