//#define _GLIBCXX_DEBUG #include using namespace std; #define endl '\n' #define lfs cout<= (ll)(n); i--) using ll = long long; using ld = long double; const ll MOD1 = 1e9+7; const ll MOD9 = 998244353; const ll INF = 1e18; using P = pair; template bool chmin(T1 &a,T2 b){if(a>b){a=b;return true;}else return false;} template bool chmax(T1 &a,T2 b){if(a void ans(bool x,T1 y,T2 z){if(x)cout< void debug(vector>&v,ll h,ll w){for(ll i=0;i&v,ll h,ll w){for(ll i=0;i void debug(vector&v,ll n){if(n!=0)cout< vector>vec(ll x, ll y, T w){ vector>v(x,vector(y,w));return v;} ll gcd(ll x,ll y){ll r;while(y!=0&&(r=x%y)!=0){x=y;y=r;}return y==0?x:y;} vectordx={1,-1,0,0,1,1,-1,-1}; vectordy={0,0,1,-1,1,-1,1,-1}; template vector make_v(size_t a,T b){return vector(a,b);} template auto make_v(size_t a,Ts... ts){ return vector(a,make_v(ts...)); } template ostream &operator<<(ostream &os, const pair&p){ return os << p.first << " " << p.second; } //mt19937 mt(chrono::steady_clock::now().time_since_epoch().count()); int main(){ cin.tie(nullptr); ios_base::sync_with_stdio(false); ll res=0,buf=0; bool judge = true; ll t;cin>>t; while(t--){ ll a,b;cin>>a>>b; vectorret1,ret2; ll cnt=0; while(a!=b){ ll g=gcd(a,b); if(a/g%2==1){ a+=g; ret1.PB(g); } else{ b-=g; ret2.PB(g); } cnt++; } reverse(ALL(ret2)); cout<