/** * author: otera * created: 19.06.2021 16:12:22 **/ #include using namespace std; using ll = long long; using ld = long double; using ull = unsigned long long; using uint = unsigned; #define repa(i, n) for(int i = 0; i < n; ++ i) #define repb(i, a, b) for(int i = a; i < b; ++ i) #define repc(i, a, b, c) for(int i = a; i < b; i += c) #define overload4(a, b, c, d, e, ...) e #define rep(...) overload4(__VA_ARGS__, repc, repb, repa)(__VA_ARGS__) #define rep1a(i, n) for(int i = 0; i <= n; ++ i) #define rep1b(i, a, b) for(int i = a; i <= b; ++ i) #define rep1c(i, a, b, c) for(int i = a; i <= b; i += c) #define rep1(...) overload4(__VA_ARGS__, rep1c, rep1b, rep1a)(__VA_ARGS__) #define per(i,n) for(int i=n-1;i>=0;i--) #define per1(i,n) for(int i=n;i>=1;i--) typedef pair P; typedef pair LP; #define pb push_back #define eb emplace_back #define fr first #define sc second #define all(c) c.begin(),c.end() #define lb(c, x) distance((c).begin(), lower_bound(all(c), (x))) #define ub(c, x) distance((c).begin(), upper_bound(all(c), (x))) #define Sort(a) sort(all(a)) #define Rev(a) reverse(all(a)) #define Uniq(a) sort(all(a));a.erase(unique(all(a)),end(a)) #define si(c) (int)(c).size() inline ll popcnt(ull a){ return __builtin_popcountll(a); } #define tpow(n) (1LL<<(n)) #define unless(A) if(!(A)) ll intpow(ll a, ll b){ ll ans = 1; while(b){ if(b & 1) ans *= a; a *= a; b /= 2; } return ans; } ll intpow(ll a, ll b, ll m) {ll ans = 1; while(b){ if(b & 1) (ans *= a) %= m; (a *= a) %= m; b /= 2; } return ans; } template inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; } template inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; } #define INT(...) int __VA_ARGS__;in(__VA_ARGS__) #define LL(...) ll __VA_ARGS__;in(__VA_ARGS__) #define ULL(...) ull __VA_ARGS__;in(__VA_ARGS__) #define STR(...) string __VA_ARGS__;in(__VA_ARGS__) #define CHR(...) char __VA_ARGS__;in(__VA_ARGS__) #define DBL(...) double __VA_ARGS__;in(__VA_ARGS__) #define LD(...) ld __VA_ARGS__;in(__VA_ARGS__) #define vec(type,name,...) vectorname(__VA_ARGS__) #define VEC(type,name,size) vectorname(size);in(name) #define vv(type,name,h,...) vector>name(h,vector(__VA_ARGS__)) #define VV(type,name,h,w) vector>name(h,vector(w));in(name) #define vvv(type,name,h,w,...) vector>>name(h,vector>(w,vector(__VA_ARGS__))) template using vc = vector; template using vvc = vector>; template using vvvc = vector>; template using vvvvc = vector>; template using pq = priority_queue; template using pqg = priority_queue, greater>; template void scan(T& a){ cin >> a; } template void scan(vector& a){ for(auto&& i : a) scan(i); } void in(){} template void in(Head& head, Tail&... tail){ scan(head); in(tail...); } void print(){ cout << ' '; } template void print(const T& a){ cout << a; } template void print(const vector& a){ if(a.empty()) return; print(a[0]); for(auto i = a.begin(); ++i != a.end(); ){ cout << ' '; print(*i); } } int out(){ cout << '\n'; return 0; } template int out(const T& t){ print(t); cout << '\n'; return 0; } template int out(const Head& head, const Tail&... tail){ print(head); cout << ' '; out(tail...); return 0; } #define CHOOSE(a) CHOOSE2 a #define CHOOSE2(a0,a1,a2,a3,a4,x,...) x #define debug_1(x1) cout<<#x1<<": "< p_f(ll n) { map ret; for(int i = 2; i * i <= n; ++ i) { if(n % i == 0) { int exp = 0; while(n % i == 0) { ++ exp; n /= i; } ret[i] = exp; } } if(n != 1) ret[n] = 1; return ret; } void solve() { LL(s, t); auto pfs = p_f(s); auto pft = p_f(t); // s^2 * 16 / tを素因数分解 ll ss = 16LL * s * s; if(ss % t != 0) { out(0); return; } ll all = ss / t; map pfa; for(auto [p, e]: pfs) { pfa[p] += 2 * e; } pfa[2] += 4; for(auto [p, e]: pft) { pfa[p] -= e; } vc> pf; for(auto [p, e]: pfa) { if(e > 0) { pf.eb(p, e); } } int sz = si(pf); vc div; auto rec = [&](auto &&self, ll now, int pos) -> void { if(pos == sz) { div.eb(now); return; } ll p = pf[pos].fr, e = pf[pos].sc; rep(i, e + 1) { self(self, now, pos + 1); now *= p; } }; rec(rec, 1LL, 0); Sort(div); vc> ans; for(ll x: div) { ll res = all / x; // y * (t - x - y) = res ll D = (t - x) * (t - x) - 4LL * res; if(D < 0) continue; ll sq = sqrt((ld)D); for(int i = max(sq - 10, 0LL); i <= sq + 10; ++ i) { if(i * i == D) { rep(_, 2) { ll y2 = t - x + (_ == 0 ? i : -i); unless(y2 % 2 == 0) continue; ll y = y2 / 2; ll z = t - x - y; unless((t - x) % 2 == 0 and (t - y) % 2 == 0 and (t - z) % 2 == 0) continue; ll a = (t - x) / 2, b = (t - y) / 2, c = (t - z) / 2; unless(a > 0 and b > 0 and c > 0) continue; unless(a <= MAX and b <= MAX and c <= MAX) continue; vc now = {a, b, c}; Sort(now); a = now[0], b = now[1], c = now[2]; ans.eb(a, b, c); } break; } } } Uniq(ans); out(si(ans)); rep(i, si(ans)) { ll a = get<0>(ans[i]), b = get<1>(ans[i]), c = get<2>(ans[i]); out(a, b, c); } } signed main() { ios::sync_with_stdio(false); cin.tie(0); // cout << fixed << setprecision(20); INT(t); rep(i, t)solve(); // solve(); return 0; }